Nutrition for Your Dog: The Top 3 Myths Debunked!

Vizsla on a diet of Purina Pro Plan

When it comes to grains, by-products and raw diets, do you know what’s myth and what’s fact? With all of the competing information out there, it’s easy to become confused over what you should or shouldn’t be feeding your hard-working bird dog.

“Quality diet and nutrition are essential to helping a dog live a long, healthy life. However, many owners aren’t aware of what this consists of and are looking to the latest trends and fads to help make decisions about their dog’s health,” explains Purina Veterinary Communications Manager Shelly Adrian, DVM. “It’s important to learn the facts behind the myths that are out there so you can make well-informed decisions about feeding your hard-working dog.”

Knowledge is power! Here Purina experts dispel a few popular myths to help bring clarity to the nutrition, quality and safety of your dog’s food.

MYTH: Dogs are carnivores and should be fed a raw, meat-based diet. Cooking destroys nutrients in dog food, so raw meat provides better nutrition.

FACT: Dogs aren’t wolves; they’re omnivores. Although raw-food-diet proponents claim health benefits such as improved digestion, firmer stool, healthier skin and coats, and nutrition more akin to the “wild diet,” very few of these claims are supported by published research. Raw-food diets can actually pose serious health risks, including food-borne illness for both humans and dogs caused by bacterial contamination of uncooked meat, physical injury caused by bones, and potential nutrient imbalances or deficiencies. Certain cooking processes in the manufacture of dog food can actually increase the digestibility of protein by gelatinizing the collagen as well as the digestibility of grains and starchy foods by altering the cellular structure of the starch granules.

MYTH: Grains are unnecessary fillers in dog food — not only are dogs allergic, but they also cannot digest grains to use as energy.

FACT: Grains are a nutritionally valuable ingredient in dog food, as they are an important source of many nutrients such as protein, fiber, essential fatty acids, B-vitamins and minerals. Grains can also provide a source of readily digestible carbohydrates, helping to meet a crucial physiological need for glucose, the most important energy source for all cells in the body. What’s more, true food allergies are rare in dogs, and the offending substances usually aren’t grains.

MYTH: By-products are just cheap, low-quality fillers used in dog food.

FACT: By-products are a common ingredient in dog foods and can provide a highly digestible and nutritious source of protein and essential amino acids, vitamins, minerals and healthy fats. By-products actually can deliver more essential nutrients than regular muscle meat. Purina only uses safe and clean, high-quality by-products, including nutrient-rich organ meats (livers, kidneys, lungs and spleens), corn gluten meal and tallow. Foods made with by-products also are more sustainable, allowing the use, rather than the waste, of nutritious components of a whole-food ingredient.

The most important aspect of dog food is whether it provides complete and balanced nutrition for pets. “Owners should have a good understanding of the ingredients used in their dog’s food — such as grains and by-products — and the benefits they bring,” Dr. Adrian says.

Owners also should research the quality and safety standards of their dog food and know who makes it, where it’s made, the steps taken to ensure the quality and safety of their food, and if their food meets or exceeds FDA and AAFCO standards. Dr. Adrian suggests contacting or checking their pet food manufacturer’s website or speaking with their veterinarian.

Every Ingredient Has a Purpose

Did you know that every ingredient in a bag of Purina brand dog food has a purpose? Visit for an interactive guide that shows the variety of ingredients used in Purina’s complete-and-balanced formulas and explains the nutritional benefits of each.

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