Homemade dog food is not automatically better than commercial dog food, and in most cases it’s nutritionally worse. The core problem is straightforward: nearly every homemade recipe available online or in books is missing essential nutrients your dog needs. That said, homemade diets do have real advantages in specific situations, particularly for dogs with complex medical conditions, and they can work well when properly formulated by a qualified professional.
Most Homemade Recipes Are Nutritionally Incomplete
A widely cited study from the UC Davis School of Veterinary Medicine evaluated 200 homemade dog food recipes from books and websites. Only nine met all the minimum nutrient standards established for adult dogs. Eight of those nine were written by veterinarians. The remaining 191 recipes were missing at least one essential nutrient, and many were missing several.
A separate analysis published in the Journal of Nutritional Science looked at published homemade recipes and found that every single one had at least one nutrient below recommended levels. The most common shortfalls were striking: about 85% of recipes were low in copper and choline, 83% were low in vitamin E, 76% were low in zinc, 73% were low in calcium, and 68% were low in iron. Vitamin B12 was deficient in 61% of recipes, and riboflavin in 66%.
These aren’t obscure micronutrients. Calcium and phosphorus imbalances can cause skeletal and developmental problems, especially in growing puppies. Zinc deficiency affects skin and immune function. Iron deficiency leads to anemia. A dog eating an unbalanced homemade diet may look fine for weeks or months while slowly developing deficiencies that eventually cause serious health problems.
Fresh Food Is Easier to Digest
Where homemade and fresh diets do shine is digestibility. A study published in Translational Animal Science compared fresh cooked diets to standard dry kibble in feeding trials and found that the fresh diets had significantly higher digestibility across the board: total dry matter, protein, fat, carbohydrates, and overall calories. The fresh diets all exceeded 90% dry matter digestibility, while kibble fell measurably below that. This makes sense, since the high-heat extrusion process used to manufacture kibble changes the structure of proteins and other nutrients in ways that can reduce how efficiently a dog’s body absorbs them.
Higher digestibility means your dog extracts more nutrition from the same amount of food, produces smaller and firmer stools, and may need slightly less food overall. This is a genuine benefit of fresh or home-cooked diets. But digestibility alone doesn’t make a diet complete. A highly digestible meal that’s missing zinc or calcium is still a deficient meal.
Raw Diets Carry Extra Risk
Some people who make dog food at home choose to feed raw meat. This introduces a food safety concern that cooked homemade and commercial diets largely avoid. An FDA study that screened over 1,000 pet food samples between 2010 and 2012 found that raw pet food was far more likely to harbor dangerous bacteria. Out of 196 raw samples tested, 15 contained Salmonella and 32 contained Listeria. By comparison, zero of the 120 dry dog food samples tested positive for Salmonella, and zero tested positive for Listeria.
The risk isn’t limited to the dog. Owners handling raw pet food, cleaning bowls, or coming into contact with their dog’s saliva can also become infected. Households with young children, elderly family members, or anyone with a compromised immune system face higher risk. Cooking meat to safe temperatures eliminates this concern, so if you’re preparing food at home, cooked diets are significantly safer than raw ones.
When Homemade Diets Make Medical Sense
There are situations where a customized homemade diet is genuinely the best option. Dogs with chronic kidney disease, for example, often benefit from carefully tailored protein levels that change as the disease progresses. Some dogs with kidney disease won’t eat commercially available prescription diets or can’t tolerate them because of other conditions like fat intolerance or food sensitivities. A homemade diet lets a veterinary nutritionist adjust protein, phosphorus, and other nutrients precisely for that dog’s stage of disease, something no single commercial product can do.
Dogs with multiple overlapping conditions present another strong case. If a dog has both a food allergy and liver disease, there may not be a single commercial diet that addresses both problems. A custom recipe can. Dogs recovering from certain surgeries or undergoing cancer treatment sometimes need temporary dietary adjustments that are easier to manage with home-cooked meals. The key in all these scenarios is that the recipe is designed by someone with the expertise to balance it correctly.
What It Takes to Get a Recipe Right
Balancing a homemade dog food recipe is not something you can reliably do by following a blog post or even most pet nutrition books. The UC Davis data makes this clear: 95.5% of the recipes evaluated, including many from published books, failed to meet basic nutritional standards.
A properly formulated recipe requires a board-certified veterinary nutritionist, a specialist who uses computer software to design meals that meet your individual dog’s needs based on their size, age, breed, health status, and activity level. At veterinary nutrition services like the one at UC Davis, the process involves reviewing the dog’s full medical history, recent bloodwork, and detailed diet history before generating a recipe. It’s a medical consultation, not a quick internet search.
Even a well-formulated recipe typically requires supplements. Meat-based diets are almost always deficient in calcium relative to phosphorus, and most whole-food ingredients don’t provide adequate zinc, copper, iodine, or selenium on their own. Your nutritionist will specify exactly which supplements to add and in what amounts. Skipping them, or substituting a generic multivitamin, defeats the purpose of having the recipe formulated in the first place.
How Homemade Compares to Quality Commercial Food
Commercial dog foods that meet AAFCO standards have already been formulated to include all essential nutrients in the right proportions. They undergo feeding trials or nutrient analysis to verify this. The trade-off is that they use processed ingredients, often contain preservatives, and may be less digestible than fresh food. But nutritional completeness is guaranteed in a way that homemade diets rarely achieve without professional help.
If your dog is healthy, eating well on a commercial diet, maintaining a good weight, and has a shiny coat and normal energy levels, switching to homemade food is unlikely to produce dramatic improvements and may introduce nutritional gaps. If your dog has specific health problems, food sensitivities, or simply refuses commercial options, a professionally formulated homemade diet can be an excellent solution.
The honest answer is that homemade dog food has the potential to be better, but only when it’s done right. For most people following recipes they found online, it’s nutritionally inferior to a decent commercial kibble or canned food. The difference between a good homemade diet and a harmful one comes down to whether a qualified professional designed the recipe and whether you follow it precisely, supplements included.