{"id":5171,"date":"2020-05-15T14:42:50","date_gmt":"2020-05-15T18:42:50","guid":{"rendered":"https:\/\/todaysveterinarynurse.com\/?post_type=articles&p=5171"},"modified":"2022-03-23T17:38:32","modified_gmt":"2022-03-23T17:38:32","slug":"alternative-pet-diets-grain-free-raw-and-other-trends","status":"publish","type":"post","link":"https:\/\/navc.sitepreview.app\/todaysveterinarynurse.com\/nutrition\/alternative-pet-diets-grain-free-raw-and-other-trends\/","title":{"rendered":"Alternative Pet Diets: Grain-free, Raw, and Other Trends"},"content":{"rendered":"

All-natural, organic, corn-free, grain-free, gluten-free, raw, kibble, canned, semi-moist, freeze-dried, frozen: there are so many types of pet foods available today. How do you know which to recommend or feed? This can be quite a controversial topic. Advocates of many diet types often adamantly believe their choice of diet is the best, whether based on facts, anecdotal information, or misinformation. This article looks at some diet option types, pros\/cons, facts, and misconceptions.<\/p>\n

Gluten, Corn, Grains, and Allergies<\/h2>\n

Misconceptions about various types of pet foods and ingredients found in pet food are often based on current fads or trends in human nutrition. Regardless of where they get their information, owners may incorrectly perceive that human dietary recommendations apply to dogs and cats. <\/span><\/p>\n

Gluten-Free Diets<\/h3>\n

Supermarkets carry a wide variety of gluten-free food products intended for human consumption. Celiac disease and gluten intolerance, whether based on scientific evidence or anecdotal information, appear to be quite common in the human population today. Pet <\/span>owners sometimes mistakenly assume that gluten affects dogs and cats in the same way as humans or that it should be avoided in pet food to prevent health issues.<\/span><\/p>\n

Gluten is concentrated protein that remains after all the starch is removed from grain. Corn gluten, which is found in some pet foods, is often blamed for gastrointestinal issues by some owners and breeders, who associate it with what they perceive as celiac disease. Celiac disease has only been documented in one specific line of Irish setters, which no longer exists. They reacted to the gluten in wheat, rye, and barley, not corn.1<\/sup> <\/span><\/p>\n

Corn-Free Diets<\/h3>\n

Corn has also been labeled by some owners and breeders as a cheap filler that causes allergies and is not well digested by dogs and cats. In truth, corn is highly digestible,1<\/sup> provides a highly available source of complex carbohydrates, and is an excellent source of linoleic acid (an essential fatty acid that is important for healthy skin), as well as essential amino acids and fiber. Documented allergies to corn are quite rare. <\/span><\/p>\n

Grain-Free Diets<\/h3>\n

Some owners mistakenly believe grains are common causes of food allergies. Another common misconception is that dogs and cats eating foods containing grains are at increased risk of developing diabetes. The author has not found any published studies to support this belief. In fact, there are no studies indicating that grain-free diets are superior or healthier for dogs and cats than more traditional diets. While some grain-free pet foods provide excellent nutrition<\/a>, others may not. Potatoes and tapioca are often used in place of grain in these diets; however, <\/span>both have a lower nutritive value than grains, containing less protein and more sugar than corn or oats. <\/span><\/p>\n

In July 2018, the U.S. Food and Drug Administration (FDA) announced that it was investigating a potential link between certain types of dog food containing peas, lentils, other legume seeds, or potatoes as main ingredients and cases of canine dilated cardiomyopathy (DCM). Analysis of 300 reports of DCM, primarily in dogs, found that 90% of the affected animals were eating a grain-free diet and that some had low blood taurine levels.2<\/sup><\/span><\/p>\n

In a recently published study, 24 golden retrievers with confirmed DCM and low plasma or whole blood taurine concentrations were followed for 12 to 24 months after a diet change and supplementation with taurine. Substantial echocardiographic improvement was seen in 23 dogs (1 was not available for follow-up). In 9 dogs initially diagnosed with congestive heart failure, the heart failure had resolved to the point that diuretics were discontinued or significantly reduced. All 24 of these golden retrievers were eating grain-free diets at the time of DCM diagnosis.3<\/sup><\/span><\/p>\n

While there appears to be a link between \u201cboutique, exotic, and grain-free\u201d (BEG) diets and DCM, to date, no studies have established a definitive link proving grain-free diets are responsible for causing DCM. However, veterinary cardiologists and nutritionists recommend that dogs diagnosed with DCM that are being fed a grain-free diet be transitioned to a conventional commercial diet and supplemented with dietary taurine. Veterinarians are encouraged to report any suspected cases of diet-related DCM to the FDA on its Safety Reporting Portal (<\/span>safetyreporting.hhs.gov<\/span><\/a>). For more on the potential relationship between grain-free diets and DCM, see \u201cGrain-Free Diets and Dilated Cardiomyopathy\u201d by Kara Burns in Today\u2019s Veterinary Nurse<\/i> Winter 2020 issue.<\/span><\/p>\n

Adverse Reactions and Food Allergies<\/h3>\n

Ingredients most commonly perceived to be associated with adverse reactions in dogs are beef, dairy products, and wheat and, to a lesser extent, lamb, chicken egg, chicken, and soy. In cats, beef, dairy products, and fish are the most common ingredients perceived to cause adverse food reactions.1<\/sup> Actual food allergies are estimated to be responsible for only 1% of skin disease.1<\/sup> Adverse reactions to one food often improve from a diet change, not because of an inherent allergy or intolerance of one ingredient, but rather based on factors such as increased digestibility of the new diet, fat, or fiber content.1<\/sup><\/span><\/p>\n

Raw, Freeze-Dried, and Frozen Pet Diets<\/h2>\n

Commercial raw diets are available in many forms; frozen and freeze-dried are the most common. These are often marketed as \u201ccomplete and balanced,\u201d while others are intended to be fed with additional supplements. All pet food labeled complete and balanced<\/i> must substantiate that claim by containing the recommended level of every nutrient in the relevant Association of American Feed Control Officials (AAFCO) nutrient profile or by having passed feeding trials following AAFCO guidelines. <\/span><\/p>\n

The internet is also full of recipes for \u201cbones and raw food\u201d or \u201cbiologically appropriate raw food\u201d (BARF) homemade diets. Many of these advocate a formula of 60% raw, meaty bones, with the remainder of the diet consisting of green vegetables, eggs, milk, brewer\u2019s yeast, muscle and organ meats, fish, yogurt, and sometimes fruit, grain, legumes, herbs, vitamins, and supplements. These meals are not expected to be individually balanced in nutrients, but rather, in theory, are to be balanced overall by varying the ingredients from one meal to the other. However, this claim is unsubstantiated, and this feeding practice should not be attempted without consulting a board-certified veterinary nutritionist. While some dedicated pet owners follow these instructions to provide this \u201cbalanced over time approach,\u201d many others, however well intended, do not. Many owners begin to make substitutions or do not continue to dedicate the time and effort this method of feeding may require. Ingredient substitutions can lead to malnutrition due to the pet not consuming a complete and balanced diet.<\/span><\/p>\n

Advocates of raw feeding often compare domesticated dogs to wolves, claiming raw diets to be more natural and healthy. A 2013 study identified mutations in key genes that provide functional support for increased starch digestion in dogs relative to wolves.4<\/sup> These results indicate that these adaptations constituted a crucial step in the early domestication of dogs, allowing the early ancestors of modern dogs to thrive on a diet rich in starch relative to the carnivorous diet of wolves.<\/span><\/p>\n

Individuals and companies who promote raw diets often refer to the following effects:<\/span><\/p>\n

    \n
  • Healthier skin and shinier coat<\/span><\/li>\n
  • Fewer allergy-related issues<\/span><\/li>\n
  • Cleaner teeth and healthy gums, claiming raw meat and bones provide a source of calcium and do not allow plaque to build up<\/span><\/li>\n
  • Leaner body condition that confers a stronger immune system, lower blood pressure, and longer life <\/span><\/li>\n
  • Improved muscle strength and stability<\/span><\/li>\n
  • Lower risk of cancer <\/span><\/li>\n
  • Better digestion and improved stool quality<\/span><\/li>\n
  • Better eye health<\/span><\/li>\n<\/ul>\n

    These claims are anecdotal and unsubstantiated by evidence-based studies or research.<\/span><\/p>\n

    Health Concerns Associated With Feeding Raw Diets<\/h3>\n

    Pathogenic\u2014and zoonotic\u2014Salmonella<\/i> species, Listeria monocytogenes<\/i>, Campylobacter<\/i> species, Clostridium<\/i> species, and Escherichia coli<\/i> have been associated with feeding raw diets, with Salmonella<\/i> infections being most frequently documented. Clinical signs of salmonellosis may include abortion, anorexia, conjunctivitis, gastroenteritis, hematochezia, and death.5<\/sup> Healthy pets may not show clinical signs of illness when ingesting these bacteria; however, immunocompromised, very young, and very old animals are at significant risk. Pets fed raw meat may also contract zoonotic parasites, including Toxoplasma<\/i> and Echinococcus<\/i> species.6<\/sup><\/span><\/p>\n

    Pathogens may be spread during diet handling and through environmental contamination from animals fed a raw diet,7<\/sup> and they also pose a significant health risk to young children, the elderly, and immunocompromised people. It is therefore extremely important for anyone preparing these diets to practice proper handwashing and to ensure that all utensils, bowls, and surfaces used for the preparation of raw pet food diets are properly cleaned and disinfected.<\/span><\/p>\n

    Organic and All-Natural Pet Diets<\/h2>\n

    The term organic<\/i> refers to the handling and processing of ingredients and products. It does not describe the quality of a product. In order to use this term on the label, pet foods and treats must comply with the U.S. Department of Agriculture\u2019s National Organic Program regulations. These regulations govern ingredient sourcing, ingredient handling, manufacturing, and the labeling and certification of products using the term organic<\/i> on the product label. <\/span><\/p>\n

    AAFCO\u2019s definition of natural<\/i> is:8<\/sup> <\/span><\/p>\n

    A feed or feed ingredient derived solely from plant, animal or mined sources, either in its unprocessed state or having been subject to physical processing, heat processing, rendering, purification, extraction, hydrolysis, enzymolysis or fermentation, but not having been produced by or subject to a chemically synthetic process and not containing any additives or processing aids that are chemically synthetic except in amounts as might occur in good manufacturing practices. <\/i><\/span><\/p>\n

    If \u201cnatural with added vitamins and minerals\u201d appears on the label, the vitamins and minerals may be chemically synthesized. <\/span><\/p>\n

    The terms holistic, human grade, premium, <\/i>and gourmet<\/i> are purely marketing terms and have no legal definition.9<\/sup><\/span><\/p>\n

    Client Communication and Education<\/h2>\n

    Communication Strategies<\/h3>\n

    It is important to obtain a full nutritional history for each patient. Start by asking broad, open-ended questions to obtain the most complete history, followed by more specific questions to clarify and ensure nothing has been left out. In addition to how many calories the patient consumes each day, the brand and product name of the primary diet, and type and amount of treats, \u201cpeople food,\u201d and any supplements provided, be sure to ask why the client selected the particular food. Learning the owner\u2019s reasons behind their choices and their perceptions of pet food types allows the veterinary health care team to address misconceptions and provide client education tailored to the individual pet owner. <\/span><\/p>\n

    If the nutritional history reveals that a patient\u2019s current diet is not complete and balanced, or if the chosen diet appears to be inappropriate, educating the client about their misperceptions is a delicate issue. Following are some potential strategies for a productive conversation:<\/span><\/p>\n

      \n
    • Listen to the client\u2019s reasons for feeding the diet in question and their concerns about other diet options. Some owners turn to alternative diets out of concern that their pet will not eat more conventional diets.<\/span><\/li>\n
    • Ask open-ended questions to ensure you understand their viewpoint. Be mindful not to sound or appear judgmental.<\/span><\/li>\n
    • Avoid making disapproving comments, using a negative tone of voice, facial expressions, and body language. If you are perceived as judgmental, condescending, closed-minded, or unwilling to listen and consider their point of view or beliefs, clients are likely to become defensive or simply unwilling to listen to your advice.<\/span><\/li>\n
    • Gently point out any misconceptions or false information, offering facts and references to the correct information. <\/span><\/li>\n
    • Some owners are not interested in advice. Others may listen and perhaps discuss or debate the issue, but not be willing to change their feeding practices. Be respectful and do not take refusal personally. Making a nutritional recommendation does not ensure that the owner will follow it. <\/span><\/li>\n
    • As with any medical advice, document the patient\u2019s nutritional history and your nutritional recommendation in the patient record.<\/span><\/li>\n<\/ul>\n

      Nutritional Recommendations<\/h3>\n

      Remember to make a nutritional recommendation for every patient every time they present to the hospital. Consider the patient\u2019s weight, body and muscle condition scores, life stage, lifestyle, and any health issues. <\/span><\/p>\n

      Recommend the diet you believe is the best for that particular patient, but remember you may also need to consider the owner\u2019s perception of what the best diet is for their pet. When you have done your best to educate your client, but they insist on feeding a diet you do not think is best, consider if there is a way to improve the patient\u2019s diet. Perhaps the client would agree to have a veterinary nutritionist evaluate the diet and, if it is not nutritionally balanced, suggest improvements. If the owner is feeding a grain-free diet that does not contain highly digestible ingredients, perhaps you can help them find one that does. If corn-free is all the client will consider, research the available options and recommend the one you believe is best suited for your patient. Suggest or provide a referral to a veterinary nutritionist for clients who want to prepare a home-cooked diet or a raw diet.<\/span><\/p>\n

      Remember, the goal of a nutritional recommendation is to provide the patient with the best possible diet. If the client is not willing to change completely, what <\/span>recommendations can you make to improve the patient\u2019s diet? Be a nutritional advocate for your patients. <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

      Alternative pet diets such as grain-free and gluten-free might be permeating the market, but educating clients on the components of a balanced pet diet will ward off malnutrition.<\/p>\n","protected":false},"author":1,"featured_media":5172,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"iawp_total_views":0,"footnotes":""},"categories":[148],"tags":[145],"class_list":["post-5171","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-summer-2020","tag-peer-reviewed","column-nutrition_notes","clinical_topics-nutrition"],"acf":{"hide_sidebar":false,"hide_sidebar_ad":false,"hide_all_ads":false},"yoast_head":"\nAlternative Pet Diets: Grain-free, Raw, and Other Trends<\/title>\n<meta name=\"description\" content=\"Alternative pet diets such as grain-free and gluten-free might be popular, but educating clients on the components of a balanced diet will ward off 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