Here at My Pet Nutritionist, we know how important your pet’s diet is, and how their diet can have a huge effect on their health and longevity. As part of their balanced diet, there are many vital macronutrients and micronutrients required in the correct quantities to ensure optimum health. One of the essential micronutrients required in the diet of both dogs and cats, is Choline; but why is it so important? Read on to find out! What is choline? Choline is an essential micronutrient; however it is neither a mineral nor a vitamin! It is a water soluble organic compound. Essential nutrients are nutrients the target species MUST consume within their diet. These nutrients are needed by the body, but the body cannot produce enough; meaning the diet needs to include them. As nutritional science has evolved over the years, move and more essential nutrients have been discovered. Choline is one of the newest discoveries in the nutrition world, being recognised as an essential micronutrient only since 1998 by the Institute of Medicine! When reading literature, you may find Choline is grouped with B Vitamins due to its similar functions within the body. Another important nutrient is Betaine, which is a metabolite of Choline. When Choline is metabolised, Betaine is formed, which has many health benefits such as protecting cells from osmotic stress (keeping cells perfectly hydrated, and stopping them from shrinking or swelling), and acting as a methyl donor, which plays a vital role in liver health, and is heavily involved in other major internal systems. Findings Here Findings Here Why is Choline Important? Choline, as an essential nutrient, is extremely important. It plays a huge role in many systems within the body from cells to metabolism, to DNA, to the nervous system. Let’s take a closer look at the roles it plays in the body: Cell Membranes: Choline is largely responsible for supporting the integrity of cell membranes, due to its ability to create the necessary fats to keep cell structure strong. Cell messengers: there are a number of compounds that act as cell messengers – passing signals between cells to allow them to ‘communicate’. Choline helps to produce these compounds. DNA Synthesis: like Vitamins B9 (Folate) and B12 (Cobalamin), Choline is involved in the synthesis of DNA. DNA is the body’s genetic code, so it is incredibly important to keep it healthy. Metabolism and transport of fat and cholesterol: this mainly improves the health of the liver. Choline helps to remove cholesterol from an individual’s liver by producing the responsible substance. If your pet is deficient in Choline, fat and cholesterol can build up in the liver, which would dampen it’s functionality. Benefits the nervous system: when Choline combines with an acetyl group, a reaction occurs using an enzyme called choline acetyltransferase as the catalyst. The result of this reaction is the production of Acetylcholine – an important neurotransmitter. Acetylcholine plays a major role in many aspects of health including muscle movement, memory/cognitive alertness and heartbeat regulation. Essential for healthy pancreas: studies show that a deficiency in Choline can be linked to pancreatitis. These studies suggest that supplementation with Choline can protect pancreatic cells, and reduce the risk of pancreatitis flares. One of the main pancreatic issues in those lacking a sufficient amount of Choline, is disruption to the exocrine system. Methylation: probably one of the most important roles of Choline in the body is Methylation. Methylation is incredibly important as it is the process which creates the Myelin sheath; the protective layer coating nerves in the body. These nerves affect brain health, and general nervous system health throughout the body. Benefits during pregnancy: during pregnancy and foetal development, choline is extremely important as it aids cognitive development in the maturing foetus – this sets young puppies and kittens up for better cognitive function when born and ageing. Findings Here Findings Here Findings Here Findings Here How Much Choline Does My Pet Need? Cats and dogs require different amounts of choline – in fact every species has different requirements for almost every nutrient, so it’s important that we tailor our pet’s nutrition to suit their species. With that in mind, how much choline is required for cats, and how much for dogs? Studies suggest that adult cats require a minimum of 800mg of Choline per kilogram of FRESH food per day, and that there is no upper tolerable limit in cats. in terms of dry food matter, this is around 3500mg/kg. Kittens may require a little more than this recommendation. Dogs require a different amount of Choline in their diet to cats. Adult dogs require at least 474mg per kilogram of FRESH food in their diet per day. in terms of dry matter, this value is around 2500mg/kg. Our nutritionists recommend around 800mg per kg of fresh food! Puppies may require a little extra. Sources of Choline When it comes to looking at pet foods on the market, most will contain Choline – however the form the choline is given in, may affect it’s efficacy. Ultra processed foods, such as dry extruded foods, may not be the best source of Choline for your pet; during the manufacture of these foods, the whole food ingredients are subject to high temperatures and multiple processing techniques which can damage nutrient quality and bioavailability. These foods are often sprayed with synthetic vitamins at he end of manufacture in order to reach minimum guidelines. At My Pet Nutritionist, we advocate for a fresh diet, where nutrients are sought mainly through the fresh ingredients included in the recipe. Some fresh food ingredients, rich in Choline, include: Liver – 209mg per 50g Eggs (especially egg yolk!) – 147mg per egg Kidney – 105mg per 50g Cod – 74mg per 50g Beef – 70mg per 50g Pork – 43mg per 50g Poultry – 36mg per 50g Brussels Sprouts – 31mg per 50g Shiitake Mushrooms – 29.7mg per 50g Cauliflower – 22mg per 50g Broccoli – 16mg per 50g Salmon – 11mg per 50g Nuts
Here at My Pet Nutritionist, we help customers tackle a host of different health conditions and concerns. Some diseases our customers’ dogs come to us with are common, and simple, others are not so common, and more complex. Exocrine Pancreatic Insufficiency is one of the not-so-common examples of health concerns we have helped customers with. While it is rare, and not tested for as standard, we are beginning to see more and more cases of EPI, so this blog post will be a great educational tool for those who want to learn more about EPI, as well as those who’s pet has been diagnosed with it. What is EPI? EPI, as its commonly called, is shortened from Exocrine Pancreatic Insufficiency. ‘Exocrine’ is the system to do with the body’s enzymes. The pancreas is an important part of the digestive system, and also an important part of the exocrine and endocrine systems. The pancreas is an organ, located in the right side of the abdomen, close to your dog’s stomach. There are two parts to the pancreas – the exocrine pancreas and the endocrine pancreas. The endocrine pancreas releases the hormone, Insulin, which controls blood sugar levels. The exocrine pancreas releases enzymes responsible for food digestion, particularly the macronutrient, protein. In those suffering with EPI, the pancreas is unable to produce enough of these enzymes, which leads to major malnutrition, unless treated daily. EPI is an incurable disease, and requires daily management to keep symptoms at bay. Findings Here Symptoms of EPI There are a number of symptoms associated with Exocrine Pancreatic Insufficiency. Many of these symptoms are common symptoms of other health conditions, which makes diagnosis of EPI quite tricky, but the symptoms can be severe, and in some cases life threatening. Here’s some of the main symptoms you could expect from a dog suffering with EPI include: Rapid weight loss Lack of ability to put weight on Insatiable appetite Chronic diarrhoea Mucus in the stool Vomiting Lethargy/fatigue If your dog has a number of these symptoms, it is extremely important you have your dog assessed by a veterinarian, as EPI dogs can go downhill very quickly. Findings Here Diagnosis of EPI Exocrine Pancreatic Insufficiency is rarely routinely tested for upon first signs of symptoms, and is regularly misdiagnosed. As the disease is quite rare, and little is taught about it in initial veterinary qualifications, dog owners who suspect this disease often have to specifically request for testing for EPI in their initial consultations. So how is EPI diagnosed? There are two tests carried out in those with suspected EPI. A fasted blood test, and a faecal test. Once the sample has been taken, the test used is called a Canine Trypsinogen-like Immunoassay (or cTLI for short!). For this test, pets must be starved for a minimum of 6 hours – this is usually best done overnight. Trypsinogen is a non-activated enzyme; known as a proenzyme. The pancreas of healthy individuals secretes Trypsinogen into the small intestine with other enzymes in the mix, where it converts to Trypsin – the activated form, which is used to digest proteins. It is very much normal for Trypsinogen to be detected in blood tests of healthy animals, because a little Trypsinogen leaks into the blood stream where it is circulated around the body. How do cTLI results differ for those with EPI? The results from a cTLI of a dog with EPI will show as low to no Trypsinogen when analysed. This is because those suffering with EPI have a reduced functionality of the pancreatic tissues, resulting in less Trypsinogen being secreted into the intestine, and therefore less leaking into the bloodstream, if any. Findings Here Another blood test is usually carried out in cases where EPI is suspected, to test for levels of Vitamin B9 (Folate) and Vitamin B12 (Cobalamin). While these vitamins aren’t directly related to the pancreas, they can easily be affected by a poorly functioning pancreas due to the affect EPI has on the microbiome of the gut. Blood serum analysis for Vitamin B12 will be low, as EPI can lead to B12 deficiency, whereas serum analyses for Folate will usually come back in excess. You can read more about high Folate and it’s relationship with low Vitamin B12, and how these are affected by the pancreas in our blog here. Findings Here Let’s move onto the faecal testing side of EPI diagnosis. The test carried out is called a Faecal Elastase Test. This test is for another of the pancreatic enzymes used during digestion, called Elastase. As with all enzymes, Elastase performs a specific job – it’s role in digestion is to help break down fats, carbohydrates and proteins, for use by the body for energy, growth, and cell maintenance. Healthy individuals with a well functioning pancreas will have elastase in their stools, however those with EPI will not produce as much elastase due to damaged pancreatic tissues, so elastase would be lacking in faecal samples. Findings Here Causes of EPI There are various reasons a dog may have EPI – it can be congenital (present from birth), hereditary (genetically inherited), or acquired (through trauma or disease). Congenital and hereditary causes are self-explanatory – it’s important to source puppies from health tested breeding pairs, with no history of EPI in their immediate or extended genetic lines. If you are opening up your heart and home to a rescue dog, there is a small chance of congenital or hereditary EPI, as you don’t know the history of the dog’s genetic lineage, however it is a rare disease, so it wouldn’t be on the forefront of our minds when considering a rescue dog. Should you experience the symptoms listed in this blog post, hopefully our guide will help you and your rescue dog should the need arise. As with many diseases we write about here at My Pet Nutritionist, there are some breeds which are genetically predisposed to EPI, including: West Highland White Terriers German Shepherds Akitas Border
As our pets eat their food, it passes from the stomach and into the small intestine. Whilst some of the digestive processes have already started, most of the chemical digestion that occurs in the small intestine relies on the activities of the pancreas, liver, and gallbladder. Let’s take a closer look at the function of the pancreas and its role in our pet’s digestion. What is the Pancreas? The pancreas is a gland found in the digestive system of our pet. It is made up of a head, a body and a pointy tail-like end. It is in the upper abdomen behind the stomach and carries out two main roles in the body: The pancreas produces: Enzymes that break down foods in the intestine Hormones that regulate blood sugar levels The pancreas is made up of small clusters of glandular epithelial cells. About 99% of these clusters constitute the exocrine portion of the organ. These cells secrete a mixture of fluid and digestive enzymes known as pancreatic juice. Pancreatic juice consists mostly of water, but it also contains some salts, sodium bicarbonate and several enzymes. The sodium bicarbonate gives the pancreatic juice a slight alkalinity that buffers the stomach acid in the chyme that has just arrived in the small intestine. It also stops the action of pepsin and creates the correct pH for the action of the digestive enzymes to function. The digestive juices that are made in the pancreas flow into the small intestine through a tube known as the pancreatic duct. In most bodies, this duct is joined by a similar duct coming from the gallbladder (the bile duct) before it reaches the small intestine. There is a circular muscle (sphincter) at the shared opening of the two ducts. This muscle controls the release of the digestive juices into the small intestine. The digestive juices usually only start working once they enter the small intestine. But if the pancreas is inflamed (pancreatitis), they already become active in the pancreas. This can start causing a range of issues. Digestive Enzymes Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. When discussing the pancreas, there are three main types of enzymes: Lipases to break down fats Proteases to break down proteins Amylases to break down starch The remaining 1% of the clusters called pancreatic islets (islets of Langerhans) form the endocrine portion of the pancreas. These cells secrete the hormones glucagon, insulin and more. These hormones usually help to regulate blood glucose levels, stopping them from getting too high or too low. Glucose Regulation Glucose is a 6-carbon structure with the chemical formula C6H12O6. It is a source of energy for every organism in the world and is essential to fuel both aerobic and anaerobic cellular respiration. Glucose often enters the body in isometric forms such as galactose and fructose (monosaccharides), lactose and sucrose (disaccharides), or starch (polysaccharide). The body stores excess glucose as glycogen, which becomes liberated in times of fasting. Glucose is also derivable from products of fat and protein break-down through the process of gluconeogenesis. Once glucose is in the body, it travels through the blood and to energy-requiring tissues. There, glucose is broken down in a series of biochemical reactions releasing energy in the form of ATP. The ATP derived from these processes is used to fuel virtually every energy-requiring process in the body. As glucose is so important to life, it stands to reason that regulation of it is incredibly tight. And as we have noted, there are a number of hormones involved in this process. Hormones involved in Glucose Regulation Hormones Involved: Insulin is a peptide hormone. Insulin plays an important role to keep plasma glucose value within a relatively narrow range throughout the day. Insulin’s main actions are: (1) In the liver, insulin promotes glycolysis and storage of glucose as glycogen (glycogenesis), as well as conversion of glucose to triglycerides (2) In muscle, insulin promotes the uptake of glucose and its storage as glycogen (3) in adipose tissue, insulin promotes uptake of glucose and its conversion to triglycerides for storage Insulin lowers glucose levels. Glucagon: Glucagon acts exclusively on the liver to antagonise insulin effects on hepatocytes. It enhances glycogenolysis and gluconeogenesis. It also promotes oxidation of fat, which can lead to the formation of ketone bodies. Glucagon increases glucose levels. Levels of both insulin and glucagon vary depending on nutrient intake. The Fed State: The fed state occurs after a meal and is also known as the absorptive state. It is characterised by a high insulin to glucagon ratio. Anabolic metabolism dominates in the fed state largely to replenish fuel stores, this is achieved by glycogen synthesis, fatty acid synthesis and protein and amino acid metabolism. The Fasting State: The fasting state occurs between meals and ensures a maintenance of blood glucose level. This state is characterised by a low insulin to glucagon ratio. This low insulin to glucagon ratio overall promotes catabolism in comparison to the fed state. In this state the major pathways include gluconeogenesis, glycogenolysis, protein catabolism, lipolysis, and ketone body metabolism Endocrine cells secrete these respective hormones in response to external signals, such as nutrient intake or stress, via humoral, neural or hormonal signalling pathways. The Brain-Islet Axis The pancreas is highly innervated with both parasympathetic and sympathetic nerve fibres from the autonomic nervous system. At the same time, insulin receptors are widely distributed within the brain. In rat studies, lesions in various brain regions were shown to affect pancreatic hormone secretion. Norepinephrine also inhibits insulin secretion, which is an important aspect of the fight-or-flight response. Insulin release is stimulated by the cephalic phase, which is the period of anticipating a meal, to prepare the body to adequately respond to incoming nutrients. The Liver-Islet Axis The liver has a key role in glucose homeostasis by storing (glycogenesis) or releasing (glycogenolysis/gluconeogenesis) glucose. Liver Guard The Gut-Islet Axis The gut releases various
In our last blog we considered the importance of minerals for your dog’s health, but we only got so far. There are further minerals, ones we deem trace minerals, which are also important to optimal health. So, let’s get cracking. Chromium Within human realms, chromium is mostly talked about for its role in modulating blood glucose levels. It is considered that chromium acts as a cofactor that can enhance the effects of insulin on target tissues. In states of chromium deficiency, abnormal glucose utilisation results along with increased insulin demands. Findings Here Along with potentiating the action of insulin, chromium increases uptake of amino acids into muscle, heart, and liver and enhances protein synthesis. It also plays a role in regulating blood lipids. Increased Risk of Deficiency: Diets high in sugars and refined carbohydrates (results in increased urinary excretion of chromium) Increased stress (physical activity, infection, trauma or illness) Pregnancy Ageing Sources of Chromium: Broccoli Turkey Chicken Brewer’s Yeast Cobalt One of the things you may not have realised about Cobalt is that it is an integral part of Vitamin B12 (cobalamin – get it?). Why Your Dog Needs Vitamin B12 Cobalt is therefore essential for the function of cells. It is involved in the production of red blood cells and the production of antibacterial and antiviral compounds that prevent infections. This mineral plays a key role in the metabolism of fats and carbohydrates as well as the synthesis of proteins and conversion of folate in their active form. In the nervous system, cobalt also plays a role in the prevention of demyelination, which is a condition that results in damage to the membrane that covers the nerve fibres in the brain and spinal cord. This ensures efficient nerve transmission. Copper Copper has a number of functions throughout the body including: Energy production in mitochondria Mobilisation and transfer or iron from storage sites to the bone marrow Synthesis of collagen and elastin in connective tissue Acts as an antioxidant (as zinc/copper superoxide dismutase) Supports synthesis of melanin in the skin Synthesis of adrenaline and noradrenaline in the nervous system Breakdown of serotonin, histamine and dopamine Increased Risk of Deficiency: High intakes of supplemental iron, molybdenum, or zinc Prolonged use of proton pump inhibitors (acid reducers) Gastrointestinal disorders (chronic diarrhoea, inflammatory bowel disease) Increased levels of oxidative stress (air pollution, toxin exposure) Signs of Deficiency: Anaemia Increased vulnerability to oxidative damage Reduced immune responses Abnormal skeletal growth Changes and loss of hair and skin pigmentation Lethargy Excessive copper build-up in the liver can cause liver disease in some dogs. Common breeds of dog that are affected include Bedlington terriers, Labrador retrievers, and Dalmatians. There are clear genetic implications found in Bedlington Terriers which prevents normal copper excretion. Three forms of the disease occur: (i) asymptomatic – in which signs are yet to develop, (ii) acute -seen in dogs up to six years of age, with the sudden onset of severe illness shown as depression, anorexia (not eating) vomiting and possibly jaundice (yellowing of mucous membranes, whites of eyes and skin), and (iii) chronic – seen in middle-aged dogs with signs of chronic liver damage and sometimes failure which may show vomiting, weight loss, jaundice and abdominal swelling. It is considered that many commercial dog foods report total copper levels as higher than recommended, and some home-made diets may not furnish adequate amounts of copper. Findings Here That said, data indicates that copper absorption is greater when diets are animal protein rather than plant protein. Findings Here Iodine An essential mineral, iodine is used by the thyroid gland to make thyroid hormones that control many functions in the body including growth and development. If you would like to learn more about the thyroid gland and the conditions that often affect it, check out our blogs here: Hypothyroidism Hyperthyroidism Hyperthyroidism in Cats Iodine can only be obtained from diet or in supplemental form. Of interest, concurrent deficiencies in selenium, iron or vitamin A may exacerbate the effects of iodine deficiency. Seaweed like wakame are rich in iodine, but other sources include eggs and poultry. Iron Functions: Oxygen transport Oxygen storage as myoglobin Energy production Cofactor for multiple enzymes Production of neurotransmitters and thyroid hormone There are two sources of iron, haem, and non-haem. Haem is found primarily in meat and meat products where non-haem is found in plants. Haem is generally well-absorbed, whereas non-haem absorption is largely affected by other factors. Common inhibitors of iron absorption are phytates, tannins, starch, and proton pump inhibitors. The body has three unique mechanisms for maintaining iron balance and preventing deficiency and overload: Storage of iron Reutilisation of iron Regulation of iron absorption Iron from food is mainly absorbed in the duodenum. Iron can be in ferrous state (Fe2+) or ferric state (Fe3+). Fe3+ is not directly absorbed, but Fe2+ is easily absorbed. In the intestine, Fe3+ is converted by ferric reductases into Fe2+. When required by the body, iron is transported by transferrin to bone marrow and other tissues. Iron is required for the transport of oxygen, oxygen storage in muscle and is also a component of energy production. After absorption, any iron that isn’t needed, is stored as ferritin in the liver, spleen, or bone marrow. During times of high need, iron is then released. Most of the iron in the body is contained within red blood cells. Red blood cells have been noted to have a life span of around 110-120 days but when they reach the end of their life span, they release iron. The resultant liberated iron can be reused to produce new erythrocytes in bone marrow, stored as ferritin or released back into systemic circulation. Iron deficiency anaemia is the common condition associated with decreased iron levels, resulting in low circulating haemoglobin and reduced myoglobin. Iron deficiency is also associated with lower T and B lymphocyte, macrophage, and neutrophil function. Your Pet’s Immune System On the other side of the scale, iron toxicity is generally associated with supplementation. At a
If you have been following any nutrition nerds (including us here at My Pet Nutritionist) then you will have likely come across the terms macro and micronutrients. We tend to reference them more commonly in the human realms, but that doesn’t mean that they don’t also apply to our canine companions (and feline for that matter). When we mention macronutrients we are referencing those needed in larger amounts in the body and they encompass protein, fat and carbohydrates. When we consider micronutrients we are looking at vitamins and minerals. Despite them being needed in micro amounts, they are still biologically necessary to all functions in the body. So, let’s take a look at minerals in a little more detail and see why your dog needs them. What is a Mineral? A mineral is a naturally occurring inorganic solid, with a definite chemical composition, and an ordered atomic arrangement. What on earth does this mean we hear you wonder? Well, let’s break it down. Minerals are naturally occurring, meaning they are not made by humans. They are inorganic, meaning they have never been alive. They are solid, meaning they are not liquid or gas. Each of them has a unique structure and arrangement which is how we know what they are. For the dog we are interested in 17 essential minerals. We have macrominerals which are needed in larger amounts and trace minerals which are needed in smaller amounts. Macrominerals Calcium You’ll likely be familiar with calcium as you were probably told to drink your milk so you would have strong teeth and bones. Calcium is the main structural component of skeleton and teeth, but it also plays a role in blood clotting. In addition, it is involved in the intracellular messaging triggering the contraction of muscle fibres. Calcium also plays a role in fat oxidation and it carries ATP (energy) with magnesium. There is an increased risk of deficiency in: Diets containing large quantities of phosphorus and sodium. Fat malabsorption (fat binds calcium, reducing absorption). Vitamin D deficiency. Diets containing large quantities of oxalates. Signs of Deficiency: Poor bone mineralisation, Muscle cramping and spasm, Increased irritability of nerve cells, Abnormal blood clotting and increased bleeding after trauma. Chloride Chloride is one of the most important electrolytes found in the blood. It plays a key role in controlling the amount of water and type of compounds that go in and out of cells. It therefore plays a crucial role in homeostasis. Chloride also contributes to muscle function and this includes the heart. This mineral helps red blood cells exchange oxygen and carbon dioxide too! Lastly, chloride supports digestive processes through its role in the production and release of hydrochloric acid in the stomach, and as we know, without this, foods won’t be properly digested and subsequently absorbed. Low levels of chloride are usually found alongside existing health issues which result in electrolyte imbalances. Sources of Chloride: Himalayan Salt Seaweed Magnesium Here at My Pet Nutritionist, we have a thing about Magnesium, for good reason. If you want to know more about this trusty mineral, then check out our full blog here: Why Is Magnesium So Important to Your Pet But the one often forgotten role of magnesium is the part it plays in energy, so we’ll do a recap. The bottom line is that insufficient micronutrient intake results in poor ATP production in the mitochondria. Remember that ATP is the currency of energy and the mitochondria is the powerplant of the cell, where it all happens. Magnesium and copper are star minerals for making ATP and without enough ATP or energy, the body hasn’t got enough resources to do what it needs to! In addition, a deficiency in magnesium can lead to mitochondrial damage. Signs and Symptoms of Deficiency: Muscle cramps and spasms Anorexia, nausea, vomiting Arrythmias Sodium and water retention Impaired action of vitamin D Increased Risk of Deficiency: Diets emphasizing processed foods and refined grains (largely nutrient deplete) Strenuous training Periods of rapid growth Intestinal malabsorption Medications (diuretics, steroids, laxatives) As a note, magnesium deficiency has also been linked to increased inflammatory cytokines, so this is a consideration to make in any chronic inflammatory condition. Findings Here Phosphorus Phosphorus in mainly used for the growth and repair of body tissues – it is a component part of bones, teeth, RNA and DNA. In the form of phospholipids, phosphorus is also a component of cell membrane structure and of the body’s key energy source, ATP. Many proteins and sugars in the body are phosphorylated. In addition, phosphorus plays key roles in regulation of gene transcription, activation of enzymes, maintenance of normal pH in extracellular fluid, and intracellular energy storage. A range of foods contain phosphorus, mainly in the form of phosphates and phosphate esters. Phosphorus in seeds for example, is in the form of phytic acid, the storage form of phosphorus. Because many species intestines lack the phytase enzyme, much phosphorus in this form is unavailable for absorption. Low phosphorus levels in the body can include anorexia, anaemia, proximal muscle weakness, skeletal effects (bone pain, rickets, and osteomalacia), increased infection risk, ataxia, and confusion. But in most cases, hypophosphatemia (low phosphorus) is caused by existing health conditions, such as hyperparathyroidism, kidney disorders, and diabetic ketoacidosis. In cases of chronic kidney disease, their ability to excrete phosphorus becomes compromised. This is why low phosphorus diets are often recommended. Kidney Disease Potassium Another electrolyte, potassium is also involved in energy production and membrane excitability and transport. Throughout the body there are a number of functions that are potassium dependent. If potassium is deficient, these enzymes or proteins are unable to carry out their job as they should. For example, one heat shock cognate protein, involved in protein folding, autophagy, apoptosis and cell stability requires potassium to carry out these functions. In a deficit, cell senescence results, along with DNA damage, carcinogenesis, and neurodegeneration. Findings Here The bottom line is that potassium helps nerves and muscles to function correctly, it maintains a
Vomiting is one of the most common reasons owners take their dog to the vet. Here at My Pet Nutritionist it is a common symptom too, but it is often misperceived for regurgitation. There are a number of reasons for both, and they are very different mechanisms. So, let’s first establish the difference between vomiting and regurgitation, and focus specifically on reasons why your dog may be regurgitating. What’s the difference between vomiting and regurgitating? Vomiting is an active process, where the dog is forcefully ejecting the contents of their stomach or intestines. It is often preceded by sound. Food is usually at least partially digested, or it may be bile that comes up. In vomiting you will notice signs of nausea, like drooling or lip licking. Regurgitation is more passive and usually happens while a dog is eating or shortly afterward. There is usually no sound beforehand. Regurgitation is often just water or undigested food. Regurgitation can be common if a dog eats something that is too large – think large bones or chews. Some dogs will attempt to re-ingest it as soon as they’ve regurgitated it. But there are also some other reasons for regurgitation. 1) Stress Stress is a response in the body –and it is similar across humans and dogs. When exposed to a stressful trigger, the sympathetic nervous system fires up. During this process, resources are directed away from the digestive system and so digestive function is compromised. This can lead to the development of acid reflux which is one of the more common reasons for regurgitation. Stress has also been seen to affect oesophageal sensitivity. During stress, corticotropin releasing hormone plays a key role. This hormone is regularly implicated in hypersensitivity (which is why conditions like IBS are more common in those who are anxious or stressed). But what it means is that the oesophagus is more sensitive to mechanical distension, chemical stimuli and more, which may lead to regurgitation. 2) Reduced Mucosal Integrity In the same strand, mucosal integrity also influences oesophageal hypersensitivity. Just like we have a barrier in the skin and gut, we also have an oesophageal one. It too is made up of tight junctions and has its own plethora of defence mechanisms, including a mucosal barrier. But the presence of acid, in cases of acid reflux can injure the oesophageal epithelium and so, in turn, it damages the mucosal barrier, along with the tight junction formation. During attempts to repair, the inflammatory response is called to action, and animal studies into oesophageal damage have suggested it is a double-edged sword. This inflammatory response has been seen to lower oesophageal pressure through its action on smooth muscle which, not only allows for further reflux of acid,but also then delays acid clearance. Findings Here. The take home here is to restore mucosal integrity as soon as possible and modulate inflammation with ingredients such as l-glutamine, slipper elm, deglycerised and marshmallow root. Gut Guardian 3) Good Stress You may notice that your dog is more likely to regurgitate if they eat too soon after exercise. There is such a thing as good stress, but the response in the body will be the same. When your dog is running, chasing and playing, they are asking their body to move away from homeostasis. Their body will need compounds at a higher rate than what they are needed at rest. It therefore places their body under stress and so, resources are redirected. Digestion is no longer a required function and energy conversion is more important. The sympathetic nervous system is the functional stress response, the parasympathetic nervous system is the commande rthat walks into a room and states, “as you were!” But this command can take time to be heard, and so, if your dog eats too soon after exercise, the entirety of the parasympathetic nervous system hasn’t yet got the message. Without a fully functioning digestive system,it propels the food back out again. Always be mindful of when you choose to offer meals to your dog. 4) The Food Being Fed Regurgitation immediately after eating is in fact relatively common in dogs – but this doesn’t mean its normal. From experience, we often link it to the type of food being fed, as often in many cases, when the food is changed,the regurgitation stops. This can be for a number of reasons,but in short, the body isn’t liking what is going in. The enteric nervous system (ENS) is a subset of the autonomous nervous system and can function independently of the central nervous system. The enteric nervous system innervates the entirety of the digestive system and ENS neurons become hyperexcitable in the presence of toxins, bacteria, inflammatory and immune mediators. Animal studies have demonstrated hyperexcitability of ENS neurons after sensitization withmilk ingestion, leading to mast cell degranulation and histamine release. What caused the sensitisation in this study isn’t relevant, the note to make is that hyperexcitability can occur after sensitization, leading to aberrant enteric function. And so, it pays to consider an inflammatory/immune component in cases of chronic regurgitation. An elimination diet may be useful in this case. Check out our blog for more information. Here Equally, an easily digestible recipe such as white fish, can help, if fish is well tolerated. Low Fat Fish Of interest here is the crosstalk between the microbiome and the enteric nervous system. ENS nerves are thought to detect microbial products because germ-free animals exhibit significantly altered enteric function. A healthy microbiome is therefore crucial for the correct digestive messages to get where they need to go. To support your dog’s microbiome, check out our blog: Here 5) Structure There are cases where the structure of the oesophagus can result in frequent regurgitation. This can be a developmental abnormality or blockage. A thorough exam would be necessary to establish the severity of any structural issue. Summary In many acute cases of regurgitation, acid reflux often comes intoplay. If you would like to learn more then check out
Any quick search on the internet will populate a range of breeds that are seemingly notorious for being fussy eaters. If you have a basenji, husky or yorkie, it looks like you’re signed up for a lifetime of stressful meals. Except here at My Pet Nutritionist, we don’t believe everything we read on the internet. Whilst all those breeds could indeed be fussy eaters, so can many more. And they are. It is perhaps one of the more common questions we are asked, “how can I get my dog to eat?” Being a fussy eater can be technically defined as an eating disorder, and there are a number of causes. From behavioural to biochemical, let’s take a look at the complex world of the fussy eater. The Function of Eating Food components are the main sources of energy for the canine body. Not only that, but it provides the compounds needed for each cell to do its job. As the body carries out its tasks, it uses fuel and compounds, as reserves run low, signals bounce around the body to kickstart feeding behaviour. This is hunger, a physical need to eat. Appetite is quite simply the desire to eat. Hunger and appetite can be at odds. You may want to eat, but not need to, and you may need to eat, but not want to (in times of stress for example). Appetite and hunger are largely controlled by the brain and a range of hormones. The Brain In the brain sits the hypothalamus. Through its connection to the pituitary gland, it modulates the endocrine system. It is involved in a range of daily activities including temperature regulation and energy maintenance. We know it plays a role in eating behaviour as several lesions to small areas of it can result in overeating and under eating. The lateral hypothalamus is defined as the feeding centre and the ventromedial hypothalamus is defined as the satiety centre. This is largely an oversimplification, but it certainly demonstrates the role. The hypothalamus receives information from the digestive system like stomach extension, chemical nature of ingested food and the metabolic activity of the liver and uses it to maintain energy balance. It also receives information from the emotion/reward system. Food is a rewarding object that induces pleasant emotions. Findings here The amygdala is largely responsible for this. Studies have demonstrated that when the reward value of food decreases, so too does eating motivation. Sadly, these studies often include the injection of lithium after eating, of which causes discomfort. But it does raise an interesting point in terms of the fussy eater in your life. We’ll revisit this later. Food reward is elicited by several events that occur before it even passes through the oesophagus, namingly the appearance and shape of the food, the taste and smell and then the pleasure of swallowing the food. We know this because in tube-feeding studies, reward sensations are reduced. In short, when subjects were no longer allowed to taste or chew it, they did not want to eat it. That said, in sham studies, when animals are denied nutrition because everything swallowed leaks out of a tube connected to the oesophagus, they eat and swallow more than usual, but they are still unsatiated. This tells us just how complex eating behaviour actually is. And provides food for thought for the gluttonous dog (on the other side of the scale). Hormones Hormones are probably the most talked about in terms of eating behaviour. You’ve all likely come across leptin and ghrelin. Leptin is produced in adipose cells, or fat cells. So, the more fat cells there are,the more leptin. In short, the more fat available in reserves, the less you need to eat. If you have no fat cells, you need to conserve your energy until you next find food. Leptin crosses the blood-brain barrier, and there are high numbers of leptin receptors found in the hypothalamus, brain stem and other regions of the brain. Rising leptin in a fed state inhibits food intake by suppressing a range of peptides involved in eating behaviour. Ghrelin is predominantly secreted in the stomach and it too modulates cells found in the hypothalamus by increasing excitatory inputs and decreasing inhibitory inputs. Here we are talking about neurotransmitters. These chemical messengers modulate much of our and our pet’s behaviour and they either make something do something or stop something from doing something. Whilst dopamine can be both inhibitory and excitatory, ghrelin is seen to have a large influence on the release of dopamine via increases in cell excitability. As dopamine is involved in reward and motivation, ghrelin is thought to target the motivational functions geared to gaining food and to select those which are more rewarding (high calorie). Findings here In eating disorders, dopamine is one of the neurotransmitters that gets a lot of attention. In times of reduced food intake (fussy eating), dopamine neurons are activated, in the short-term rewarding the lack of food. It is considered that it is a physiological response in an attempt to increase motivation to forage for food. Findings here However, there are also other mechanisms in which the dopaminergic system comes into play for the fussy eater. A central feature of the dopamine neuron response is that it is triggered by unexpectancy. After receiving an unexpected reward like food (or how many likes our recent post has got on social media) a dopamine surge is elicited. When this becomes a regular occurrence, the dopamine signal is triggered by the conditioned stimulus in predicting the reward. However, the dopamine system does not respond when the reward is received. If the reward is predicted, then not received, there is a dip in dopamine activity. What this means, is that your dog may do the song and dance ready for their bowl of food, but then walk a way as soon as it is placed in front of them. The reward they predicted (tasty food), isn’t what was received. The other neurotransmitter that gets a
You’re in the middle of your daily grooming session and you notice a thinning patch of hair on your canine companion. Without any obvious recent trauma to result in scar tissue and no replacement hair, your mind starts going to all the places it shouldn’t. A quick google search likely doesn’t help but well here at My Pet Nutritionist, we hope to give you possible solutions. There are in fact a number of reasons why your dog may start losing his hair, or having thinning areas, so let’s look at them in a little more detail. Hair growth occurs in stages: – Anagen – the growing phase – Catagen – the transition phase – Telogen – the resting phase – Exogen – the shedding phase An intact hair coat is maintained by the lifelong cycling of these phases. When a hair follicle has passed the telogen stage and shed it, if it remains empty for a period of time it is deemed kenogen. The anagen phase is restarted when epithelial stem cells are in good form. Stem cell activity is dependent on many complex interactions including: Immune cell function Nerve fibres Hormones Genetics Daylight Nutrition Circadian rhythm And stress 1. Hormones So much of a factor, there is a condition deemed hormonal alopecia in dogs. This can be linked to neutering with many owners reporting hair loss or thinning post neutering. But when we say hormones we are also considering thyroid hormones. The thyroid gland is in fact active in the initiation of hair growth and replacement. Located in the neck near the trachea or windpipe, this gland produces hormones which regulate metabolism. Both hyperthyroidism and hypothyroidism can result in hair loss in the dog although hypothyroidism is likely the more commonly occurring form of hormonal alopecia in dogs. Initially hair loss is patchy, the coat is dry, the hair is brittle and easily pulled out. Quite often hyper pigmentation occurs. In some cases, secondary pyoderma and seborrheic dermatitis may follow. The hair that remains is often stuck in the telogen or resting phase, hence it’s poor condition. Other signs of hypothyroidism includes: Weight gain Lethargy Increased susceptibility to infections Slow heart rate Abnormal nerve functioning which presents as non-painful lameness or lack of coordination Keratoconjunctivitis or dry eye Fat deposits in the corneas of the eyes Thyroid function is easily assessed through screening and if it isn’t running all on cylinders, then it can often be managed. 2. Nutrition It wouldn’t be a My Pet Nutritionist blog without mentioning nutrition now would it. Nutritional status affects hair growth and maintenance. Every cell in every body, including our dog’s, needs basic components to carry out their function. This includes immune cells, stem cells and hair follicles. The root of a hair is made up of protein cells and nourished by nearby blood vessels. As it grows, sebaceous glands near the hair follicles produce sebum which is made up of triglycerides, wax esters and cholesterol. Sebum lubricates the skin and hair to protect it from friction and therefore makes it impervious to moisture and/or pathogens. The hair moves through its phases, but new data is suggesting that even though telogen is defined as the resting phase, hair follicles aren’t doing that much resting. In fact, much cellular activity occurs during this phase so that tissues can regenerate and grow new hair. This means there is a demand for nutrients. Time and time again there has been a link made between nutritional status and hair health and growth. Low vitamin D status has been implicated in cases of alopecia Over-supplementation of Vitamin A is associated with alopecia In a Biotin deficiency signs include hair loss, Folate deficiency can result in hair, skin and nail changes Vitamin C is known to aid iron absorption, the latter being implicated in hair loss Hair loss is a common sign of zinc deficiency Hair loss can be seen in Iodine deficiency, also a mineral that aids thyroid function All things considered we would advocate afresh food diet which includes: Meat protein (haem iron is found in meat, chicken and fish and is more easily absorbed that non-haem iron found in plant foods). Oily fish (source of Vitamin D) Organ meats (good source of biotin) Leafy greens (folate came from the latin folium because it was first found in leaves!) Berries (source of Vitamin C) Meat and shellfish (source of zinc) Be mindful if you are tackling any other health concern which requires the elimination of any of these foods, we can always help you find alternative nutrient sources. 3. Stress Stress, we can confidently say is the bane of everyone’s life, including our pet’s. But what is particularly interesting is that in some cases, hair loss follows months after a traumatic event often making it difficult to connect the dots. As we have mentioned, hair cycles through different phases and all follicles can be at different stages at any onetime. Many will be in the growth phase or anagen phase before hitting telogen and ultimately shedding. But high levels of stress can cause a blanket shift in the phases and bump many of the follicles to telogen, all at the same time. The result? Bald patches or thinning. It makes sense evolutionarily. When facing a threat, what is more important? Brain and muscle function or hair growth? Stress triggers a sort of redistribution of resources, which in the short term is manageable. The issue is when faced with chronic stress. Hair loss as a result of trauma may not appear until the initial stressor has passed, the growth phase has been prematurely stopped, hitting telogen sooner, but then we still have to wait for the shedding to occur. We then need the growth phase to start again, which may or may not happen depending on the recovery from the stressor or in fact whether the host is still experiencing it. Stress also depletes nutritional resources along with impeding the digestion and absorption of them and as
Halitosis, as it’s more technically known, in dogs, can be a symptom of a range of health concerns. Ranging from dental disease to some cheeky gut bugs overworking, bad breath is often the first sign things may not be as they should, so lets take a look at the more common reasons and what options are available to you. 1) Periodontal Disease Periodontal disease begins when bacteria in the dog’s mouth forms to create a substance called plaque. The plaque sits on the surface of the teeth and with the help of saliva, it hardens to form tartar. Not only does it sit on the teeth, plaque and tartar seeps into gum lines which causes inflammation. Over a period of time, this inflammation and presence of bacteria causes damage to the structures surrounding the teeth; causing receding gum lines and eventually tooth loss. Not only are the mouth and teeth a concern, but the bacteria found in the mouth of your dog can be released into the circulatory system, which then travels through the body. It has been found to damage cardiac tissue causing endocarditis (infection and inflammation in the heart). Studies have also shown that periodontal disease is linked to increased insulin resistance, kidney and liver issues. Findings here The mouth is full of bacteria, primarily to form a first line of defence to protect us and our pets from the bad bugs, but the bad bugs can use carbohydrates, known as starches, as fuel, and subsequently thrive. These bacteria destroy enamel which further develop into cavities, or holes. This is why, in most human literature we are told to avoid sugars for the benefit of our oral health. It stands to reason that we would want to avoid starchy food for our pets too. A fresh food diet is as standard, low in starch, but the inclusion of raw meaty bones, if appropriate, can also create friction when eaten and contribute to the prevention of build-up on the teeth. Please note common dry foods on the market, although not marketed contain between 18-60% carbohydrates. So, if your dog’s breath could keep a vampire away, you may want to check his oral hygiene. Look for build-up, grey/brown deposits, and any breakdown of teeth. 2) SIBO Whilst it sounds like a mission to outer space, SIBO is actually a little more common than that. Small intestine bacterial overgrowth is getting increasingly common in the pet world. Whilst we usually define the microbiome as the microbial community found in the whole of the digestive tract, abundance generally increases from the stomach to the colon So, we would generally find more microbes the further down we go. SIBO occurs when we get more than we bargained for in the small intestine. It is more commonly associated with surgery, or rather a complication of surgery, but it can also occur as a result of any disease which slows the passage of food and waste products down. This means they stay in the wrong place for too long, and we all know what happens when you’re in the wrong place at the wrong time. SIBO is often associated with cases of IBD or IBS, but there must also be consideration given in times of chronic stress as we know motility is affected here. Symptoms of SIBO include loss of appetite, abdominal pain, nausea, bloating, diarrhoea, and weight loss. Due to the overgrowth of bacteria, bad breath is often a symptom. Unfortunately, there are a number of complications associated with SIBO. It can result in poor digestion and absorption of fats, proteins and carbohydrates. Bile salts that are usually required to digest fats are often broken down by the bacteria, leaving few left to digest the fat in the diet. This then leads to reduced absorption, transport and utilisation of any of the fat-soluble vitamins, A, D, E and K. The overgrown bacteria also utilise the B12 marked for host use, subsequently leading to B12 deficiency. SIBO is also indicated in cases of immune deficiency, cirrhosis, and pancreatitis. Findings here Nutritional management plays a huge role in SIBO, so if you are concerned your dog may be showing symptoms, then please book a consultation here. Gut Guardian 3) Liver Disease When the liver isn’t performing to its fully capacity, it can result in potential toxins still circulating in the body. This includes the lungs. On exhale, this can present as a strong faecal smell (be mindful we are dealing with dogs, and some of them do perform coprophagy: eating poop). However, in cases of liver disease you would notice other symptoms such as loss of appetite, weight loss, increased thirst, increased urination, jaundice (yellowing of the gums and eyes), weakness and loss of stability and in some cases seizures. Liver disease can occur as part of ageing, or there are genetic predispositions. However, oxidative stress is a significant contributor to liver complications. Risk factors associated with oxidative stress include: Obesity Diets high in processed foods Exposure to radiation Pollution Exposure to pesticides Not only that, but the body’s natural immune system can also trigger oxidative stress. This is a normal process that is swiftly managed in a healthy system. The concern is when your dog’s immune system is regularly being called to duty, over not-so-threatening threats. This state of chronic inflammation can result in higher levels of oxidative stress, putting pressure on many body systems. A diet high in antioxidants can help modulate oxidative stress, but if you are concerned about your dog’s liver function, then it’s best to speak to a qualified practitioner. If you would like to read more about liver disease, then check out our blog here. Liver Guard 4) Kidney Disease Another part of the detoxification system, when the kidneys aren’t doing what they’re supposed to, excessive urea can end up in the bloodstream resulting in a halitosis. This odour is described as ammonia smelling and having a metallic taste – but as our dogs can’t talk, we’ll just have
Zinc is a nutrient that all humans and pets need to stay healthy – it is involved in many functions in the body. Zinc helps fight disease and aids wound healing. It assists a range of hormones in their roles like insulin, growth hormone, and those produced by the thymus. It is also essential for healthy skin, eye, and brain function. Whilst still relatively unclear, there also seems to be an increased risk of certain cancers with low circulating levels. In case you hadn’t noticed, zinc is involved in many processes in the body and when deficient, can cause a whole host of issues; perhaps some you never would have considered. So, let’s look at its function in a little more detail and what happens when things go a little awry. Functions in the body Immunity The immune system is a complex network of cells and proteins that defend the body. All cells depend on a regular supply of zinc to function and none more so than immune cells with their high rates of proliferation and differentiation. One of the mechanisms that zinc helps protect the body is by stabilising cell membranes. Deficiency can cause damage to epidermal cells and to the linings of the gastrointestinal and pulmonary tracts. Consequently, this facilitates the entrance of potential pathogens into the body. It has been repeatedly proven that low levels of circulating zinc results in suppressed immune responses and increased susceptibility to infectious agents. In short, zinc brings the army rather than a brigade. Inflammation It is well established that zinc mediates inflammatory response, it reduces pro-inflammatory cytokines. Whilst inflammation is a natural process that serves to protect, constantly increased pro-inflammatory cytokines are associated with a range of chronic disease, so modulation of inflammation can be a useful preventative agent for pet health. Findings here Zinc as an antioxidant It’s easy to disregard the purpose of antioxidants when we are bombarded with superfoods containing them everywhere we turn, but they are a crucial component to a healthy system. When cells generate energy, free radicals are produced as a consequence. Think of them like the exhaust fumes of work. These fumes then need to be neutralised by antioxidant defence mechanisms. If there is an imbalance, oxidative stress results which can lead to cell and tissue damage. Overproduction of free radicals is linked with cancer, cardiovascular disease, neurodegeneration, metabolic disorder, inflammation, and advanced ageing. Zinc performs as an antioxidant, through a range of functions. On one hand, it is key in stabilising membrane structures, likely from its capacity to prevent lipid peroxidation. This is where free radicals steal electrons from cell membranes, resulting in cell damage. Studies have shown that zinc supplementation can decrease lipid peroxides. Its relationship with metallothionein and copper is also of interest. Metallothioneins are a family of proteins which detox heavy metals, scavenge free radicals and have anti-inflammatory processes; zinc causes an increase in metallothionein. Findings here What is particularly interesting is that metallothioneins (MTs) play a pivotal role in tumour formation, progression, and drug resistance. MT expression varies from tumour to tumour, but there are promising markers when we are looking at cancer outcomes. Findings here Copper is also critical in processes to remove free radicals. They key is in the balance of zinc to copper for this process to work efficiently as excess copper levels can actually result in oxidative damage and interfere with cellular function. Findings here Hormonal regulation Zinc has a key influence on the endocrine system. Comprised of a number of glands in the body, it includes the ovaries, testes, thyroid, parathyroid, adrenal, pineal and pituitary glands. The effect of low zinc levels on the endocrine system includes: – Reduced conversion of thyroxine to triiodothyronine (these hormones play an important role in weight regulation, energy levels, internal temperature, skin and hair health and nail growth.) Findings here – Reduced activity of thymulin (induces differentiation and function of T cells, which are crucial to immune function). – Lowered insulin-like growth factor 1 (IGF-1) levels (important during growth periods). – Affected synthesis, storage and secretion of insulin (zinc deficiency is linked to insulin resistance, glucose intolerance, diabetes mellitus and coronary artery disease). Findings here Hypothyroidism is a common cause of hair loss in pets – what is often forgotten is that zinc and other trace elements, like copper and selenium are required for the synthesis of thyroid hormones. Deficiency in these elements can result in hypothyroidism. Likewise,thyroid hormones are essential for the absorption of zinc, which is why hypothyroidism can result in acquired zinc deficiency. At MPN, if your dog presents with allergies and itchy skin, we always recommend checking thyroid function. Brain Function Zinc is essential for brain development and physiology. Low zinc has been associated with alterations to behaviour, abnormal central nervous system development and neurological disease. There is demonstrated decreased nerve conduction, neuro-sensory disorders and obvious mental lethargy. Zinc is known to affect neuronal excitability and synaptic transmission. Findings here In practice, low zinc is associated with increased anxiety, aggression, and depression like behaviour, along with an impaired sense of smell and taste. This poses food for thought in cases of dog reactivity and working dog performance. Eye Health Zinc is found in ocular tissue, particularly in the retina which is why zinc supplementation is often used to aid retinal health. Studies have shown that supplementation can reduce the progression of macular degeneration (eye disease). It has also been linked to reduction in vision loss. Findings here Skin Health The skin has the third highest abundance of zinc in the body. Its concentration being higher in the epidermis than the dermis. As we have already established, zinc stabilises membrane structure which is key to skin health. Zinc has regularly been used in a range of skin conditions including infections, inflammatory dermatoses, pigmentary disorders and neoplasias. What is particularly interesting is its role in allergic and inflammatory responses. Mast cells play an important part in adaptive immunity, they are found in the skin and many other places including
Dogs are carnivores and have very little nutritional requirement for dietary carbohydrates (starch) to thrive. They get everything they require from protein and fat. Unfortunately, carbohydrates are one of the the main ingredients in commercial pet food, not displayed on the packaging. Our dog’s ancestors didn’t eat dry kibble like they do today. A dog’s digestive system is geared up to digest exactly what he evolved it eat – wild prey. Unlike us, dogs cannot produce the enzyme amylase in their saliva that helps break down starch. However, they do produce a small amount from the pancreas which means they are capable of digesting ‘small’ amounts like grasses, seeds and plant matter – all of which would have been found in the wild prey’s gut they would have hunted down and eaten. Due to the lack of amylase, digesting processed food; laden with carbohydrates puts huge pressure on the digestive system that can lead to many health issues like obesity, diabetes and cancer so it only makes sense to feed a fresh or species appropriate diet that mimics what they evolved to eat naturally. The Ultimate Raw Feeding Guide for Dogs As discovered by the NRC (Nutritional Research Council), it has been proven that dog’s do not require a high amount of carbohydrates, un yet they allow 30-60% of pet and veterinary approved foods to contain carbohydrates. National Research Council of the National Academy of Sciences, “Nutrient Requirements of Dogs and Cats”, 2006 Edition, National Academies Press, Washington, DC. Not all carbohydrates are bad for our dogs, so how do we know what to look for and understand the good from the bad and how much we should be offering them and why?[ Carbohydrates come in three categories –sugar, starch and fibre. Simple carbohydrates are the simplest of the two carbohydrate forms. They are essentially ‘sugars’ that are found in many cheap highly refined grains, white rice and can also be found in fruit (fructose) dairy products (lactose). Simple carbohydrates can be further broken down to monosaccharides and disaccharides. Quickly and easily metabolised, these simple carbohydrates better known as (sucrose and glucose) which are found in refined products like sugar beets all of which area source for short-term energy. Complex carbohydrates are made up of larger, more complex molecules.These are called polysaccharides. They are digested more slowly; these are subcategorised as ‘starches and fibres’. Both soluble and insoluble fibres are found only in unprocessed whole foods (plant food) such as vegetables. Complex carbohydrates provide slow-release energy. They aid digestion, help maintain the immune and nervous systems and help regulate the metabolism. Let’s talk phytonutrients! We love them here at MPN. Phytonutrients are not essential to keep the dog alive like proteins, fats, vitamins and minerals do, but they have shown to help with important health benefits including potent antioxidant properties (antioxidants that help protect cells from oxidative damage caused by free radicals/disease) and may have anti-cancer activities that send healthy signals to cells. Phytonutrients also encourage enzyme production and add fibre to the diet. The most common are carotenoids (which include alpha-carotene and beta-carotene) and flavonoids. Carotenoids are found in fruit and vegetables that are red, orange and yellow in colour. Examples: bell peppers, raspberries, carrots, sweet potato, cauliflower and apples. Flavonoids are found in the darker coloured fruit and vegetables that have blue, purple and red pigments. Examples: blueberries, blackberries and some green vegetables such as kale. Phytoestrogens however, are some what different and important to understand why. They are found in foods like soy beans, chick peas, alfalfa and legumes. They come under the names of coumestan, isoflavones and lignans. These should be consumed in moderation as they can disrupt endocrine function, such as the thyroid gland which can lead to Hypothyroidism similar effects to feeding too many cruciferous vegetables, these should also be fed in moderation but they do have some benefits in fighting cancer. Phytoestrogens are chemicals found in plants that act like hormone oestrogen and can either mimic or block oestrogenic effect (Allred et al., 2001). On a positive note, lignans can have a helpful effect. Flax Hull Lignans have shown success in Cushing’s disease, which is a disease caused by having too much cortisol in the body. According to a study on Scottish Terriers that was carried out in 2005, suggests that consuming certain vegetables three times per week might prevent or slow down the development of transitional cell carcinoma (TCC) a bladder cancer that this breed is predisposed to. Study found here Despite the fears regarding oxalates – which are naturally occurring plant substances. If fed in large amounts (and in some cases with dogs who have leaky gut) it may be absorbed from the gut into the blood, urine and tissue. When excreted by the urine calcium-oxalates bind together and can lead to kidney stones (which is rare in dogs but crystals are not unheard of). These oxalates are found in green leafy vegetables. If these phytonutrients are fed in small amounts there should not be too much of concern. The highest levels of oxalates are found in spinach, beet greens and swiss chard, feeding small amounts is perfectly fine or opt for lower oxalates in vegetables like watercress and cabbage. Anything that isn’t species appropriate should always be fed in moderation. Glycemic index is a measurement of how certain foods increase blood sugar once eaten. Many high glycemic carbohydrates are ‘refined’ grains that have been milled resulting in loss of most nutritious contents; dietary fibre, iron and the B vitamins. High glycemic carbohydrates should be avoided in dogs, such as corn, wheat, white rice, potatoes and peas. You will find these in the majority of commercially prepared dog food, dogs being fed these types of foods, may do well for a short term but will only be a matter of time when health issues start arising. For example, dogs who suffer with sensitivities or allergies, may do better eating food that have low glycemic index (GI) such as vegetables, fruits
Did you know herbs have a wealth of protective polyphenols-plant compounds with potent antioxidant and anti-inflammatory effects? Not only do they have these wonderful medicinal actions for us humans many uses apply to our pets to. Millions of years before the first human walked the earth, creatures large and small were using plants as their primary source of healing. Today western society is spoiled by the concept of making problems go away quickly so we can get on with life rather than taking the longer route towards finding the cure. This is an incredibly big problem in the veterinary world, how they use allopathic medicine like prednisone,steroids, NASAIDs and the over use of antibiotics that suppress the immune system more. These are all a ‘quick fix’ and mask the problem. Although allopathic medicine does have its place, common conditions can be supported successfully with the use of herbs. Here at My Pet Nutritionist, we use holistic principles and philosophies and treat and find the cause, rather than suppressing symptoms. While using these wonderful herbs, they enable us to support the natural healing mechanisms of the body and help our pet’s homeostasis; the state of harmonious balance. I have listed some of the wonderful herbs we regularly use in clinic today that have astounding results, alongside diet and other nutraceuticals. Nature itself is the best physician. Hippocrates ASHWAGANDHA Is a small evergreen shrub that grows in India, the Middle East and parts of Africa. Ashwagandha (withania somnifera) is commonly known as ‘Indian Winter Cherry’ or ‘Indian Ginseng’ It belongs to the Solanaceae (nightshade) family. This lovely shrub is considered as an adaptogen, meaning it promotes balance in many different systems of the body. It has amazing anti-inflammatory, antioxidant, immune amphoteric, nervine, antispasmodic, chemoprotective activity and a wonderful immunomodulator. It’s species name, somnifera means ’sleep –inducing’ in Latin. Somnifera indicates it’s traditional Ayurvedic use for supporting somnolence or sleepiness. It is one of the most important herbs ofAyurveda (the traditional system of medicine in India) and can be traced back to 6000 BC (Charak Samhita, 1949). Ashwagandha for humans and dogs help to regulate and boost the immune system and reduce anxiety. It supports a healthy response to stress and mental wellbeing. Human studies have shown it to lower high cortisol levels significantly. Ashwagandha contains carotene, vitamin C, iron, calcium, flavonoids, antioxidants and essential minerals that support hundreds of biological functions in the body. Recommended Cytoplan Organic Ashwaganda based on 200mg per 10kg of weight. PARTS USED – Root COMMON USES -Stimulating the thyroid (dogs with hypothyroidism), anxiety, fatigue, nervous exhaustion (adrenal fatigue), immunity, rheumatoid arthritis, adrenal lymphoma, lymphosarcoma and sexual hormonal balance. SLIPPERY ELM Is a deciduous tree that can grow to 80feet tall. They are found in forests of the eastern half of the USA and Canada.Slippery Elm is related to the American Elm (ulmus americana)and is sometimes called Red Elm or Moose Elm. The name is developed due to the mucilaginous inner bark which pioneers in North America chewed for quenching thirst. It was also used by physicians during the American Revolution. Today it is best used in the digestive track, where it serves as a soothing, protecting and lubricating demulcent and general astringent at the same time. The inner bark of the Slippery Elm is not only packed with nutrients like vitamins A, B complex, C, K, Calcium, magnesium and sodium, but it is also having anti-inflammatory properties that is soothing of the respiratory system which is known to help with kennel cough and very soothing on the mucous membranes that reduces inflammation. Sadly, the tree is declining so slippery elm should be reserved for circumstances where alternatives are ineffective. In many instances slippery elm can be substituted with plantain (Plantagosp.) If a more mucilaginous remedy is needed, marshmallow root (Altheaofficinalis) is an excellent alternative. Greens for Healthy Pets have a lovely sustainable sourced slippery elm based. PARTS USED – Inner bark COMMON USES – Digestive tract, respiratory tract, skin MILK THISTLE A native of the Mediterranean region ofEurope, milk thistle (Silybum marianum) has become naturalised in many portions of North America. In many areas it has earned the reputation of being an invasive weed that has been used for over 2000 years.Milk thistle is cultivated throughout much of the world for its medicinal seeds and is effective in protecting and regenerating the liver due to the chemical it provides called silymarin (which is a mixture of 3 compounds known assilybin, silydianin and silychristine). Because of the benefits that have been examined in humans it has also been approved as beneficial for pets. The liver stores many toxins which can lead to many diseases in our pets including kidney disease, pancreatitis, cancer and diabetes. According to Mark E. Richardson in his article entitled The True Causes of Allergies, your pet’s liver can be overproducing histamines because it has too many toxins to deal with. As our pets are exposed to so many environmental toxins that we can’t control it’s a good idea to detox regularly with milk thistle especially at the end of every season. Avoiding chemical flea, tick, worming treatments and over vaccinating will also reduce the toxic load we expose them to. Milk thistle contains high amounts of essential amino acids and minerals including calcium, potassium, magnesium, sodium, iron,manganese, zinc and copper. Greens for Healthy Pets Organic Milk Thistle. PARTS USED – Ripe seeds COMMON USES – protecting and strengthens the liver/gallbladder and a good detox PARSLEY Originally a native of southeast Europe and west Asia, parsley is now cultivated worldwide. The most common varieties are curly and flat leaf. This is a must have in your home or garden as it is one of the most versatile, cheap and easy to grow. Parsley (Petroselinumcrispum) leaves and stems are very nutritious, containing up to 22percent protein and impressive amount of vitamins A, C, B 1,B2,and K, calcium, riboflavin, potassium, iron, magnesium, niacin,magnesium, manganese, chlorophyll, phosphorus as well as providing fibre and phytonutrients – wow impressive?
