Common Myths About Dog Food Debunked: What the Science Actually Says

The Internet Is Full of Dog Food Advice — Much of It Wrong

Search for dog nutrition advice online and you'll encounter confident claims that contradict each other completely. Dogs must eat raw. Dogs should never eat raw. Grain-free is essential. Grain-free causes heart disease. The problem isn't a lack of information — it's opinions disguised as facts. Here are seven persistent dog food myths examined through veterinary science and Canadian regulatory standards.

Myth 1: Dogs Are Carnivores

The claim: Dogs are descended from wolves and should eat a meat-only diet.

The reality: Dogs are classified as omnivores, not obligate carnivores. A landmark 2013 study in Nature identified key genetic differences between dogs and wolves, including multiple copies of the gene for amylase — the enzyme that digests starch. Roughly 15,000 to 40,000 years of domestication have fundamentally changed their digestive capabilities.

What this means: A balanced diet includes quality animal protein, but also vegetables, fruits, and appropriate carbohydrates.

Myth 2: Grain-Free Is Always Better

The claim: Grains are fillers that dogs can't digest and cause allergies.

The reality: Most dogs digest grains well. True grain allergies are uncommon — only about 1% to 2% of dogs have genuine food allergies, and the most common allergens are proteins like beef, dairy, and chicken, not grains.

In 2018, the U.S. FDA began investigating a link between grain-free diets (particularly those heavy in legumes) and dilated cardiomyopathy (DCM) in dogs. While causation isn't proven, the correlation was concerning enough that many veterinary nutritionists now advise against grain-free unless medically necessary.

The Canadian Food Inspection Agency (CFIA) does not endorse grain-free diets as superior — because the evidence doesn't support it.

What this means: Unless your dog has a diagnosed grain allergy confirmed through an elimination diet, there's no scientific reason to avoid whole grains like brown rice and oats.

Myth 3: Raw Food Is Always Safer and Healthier

The claim: Raw diets are more natural and therefore healthier for dogs.

The reality: Raw diets can provide good nutrition, but "natural" doesn't mean "safe." A 2022 study in Veterinary Record found significant percentages of commercial raw pet foods tested positive for Salmonella, E. coli, and Listeria — posing risks to dogs and the humans handling the food.

Health Canada has issued guidelines noting bacterial risks and recommends careful handling for anyone feeding raw.

What this means: Raw feeding isn't evil, but gently cooked homemade food delivers many of the same benefits without the bacterial risk.

Myth 4: By-Products Are Always Bad

The claim: By-products are slaughterhouse waste and indicate low-quality food.

The reality: By-products — including organ meats like liver, kidney, heart, and lung — are actually some of the most nutrient-dense parts of an animal. Liver is rich in vitamin A, iron, and B vitamins. Heart provides taurine and CoQ10. Dogs in the wild eat organs first.

The issue is transparency. "Meat by-products" without specification is vague; named by-products — "chicken liver," "beef heart" — are clear and high quality. Under CFIA regulations, by-products must be derived from animals fit for human consumption.

What this means: Don't reject food solely because it contains by-products. Look for named organ meats on the ingredient list.

Myth 5: Homemade Dog Food Is Nutritionally Incomplete

The claim: You can't possibly meet your dog's nutritional needs with home cooking.

The reality: This myth contains a grain of truth. A 2013 JAVMA study found that 95% of homemade diet recipes found online had at least one nutritional deficiency. But the solution isn't to abandon homemade feeding — it's to do it properly. Diets formulated by a board-certified veterinary nutritionist can meet and exceed commercial food standards.

What this means: Homemade feeding done right is excellent. Just winging it with chicken and rice every day is risky. Use properly formulated recipes.

Myth 6: Dogs Should Eat Like Wolves

The claim: Since dogs descended from wolves, they should eat a wolf's diet of whole prey.

The reality: This ignores everything that happened between wolves and your Labrador Retriever. Domesticated dogs have different jaw structures, gut microbiomes, and metabolic pathways. Wild wolves average 6 to 8 years of lifespan with parasitic infections, nutritional deficiencies, and dental disease. Using wolf biology as a model for pet nutrition doesn't hold up.

What this means: Your dog's nutritional needs should be determined by modern veterinary science, not ancestral fantasy.

Myth 7: Premium Price Equals Premium Quality

The claim: The most expensive dog food is always the best.

The reality: Price is a poor proxy for quality. Some expensive foods are excellent; others are expensive because of marketing and packaging. The critical factors to evaluate are:

• Nutritional adequacy — does it meet AAFCO or equivalent Canadian standards under CFIA oversight?
• Formulation expertise — was it developed by a veterinary nutritionist?
• Ingredient transparency — can you identify every ingredient?
• Company track record — recall history, quality control practices

What this means: Judge food by formulation and ingredients, not price tag.

Think Critically, Feed Confidently

The best defence against dog food myths is a combination of veterinary guidance and critical thinking. Question bold claims, look for peer-reviewed evidence, and remember that the goal is simple: a nutritionally complete, balanced diet made from identifiable, quality ingredients.

At Alqo, transparency isn't a marketing strategy — it's how we operate. Every ingredient is listed, every recipe is formulated for nutritional completeness, and every meal is made with the belief that your dog deserves real food backed by real science.