The Problem with “Homemade Is Better”
The motivation behind home cooking for dogs is understandable. Commercial pet food recalls, opaque ingredient sourcing, and the desire to control exactly what your dog eats all push owners toward the kitchen. For some dogs, particularly those with complex food allergies or specific medical conditions, a veterinarian-formulated homemade diet is genuinely the best option.
But the gap between well-intentioned home cooking and nutritionally adequate home cooking is enormous. Stockman et al. (2013) analyzed 200 homemade dog food recipes from books, websites, and veterinary sources and found that 95% were deficient in at least one essential nutrient. The most common deficiencies were in calcium, vitamin D, zinc, and vitamin E. Many recipes were deficient in multiple nutrients simultaneously.
Heinze et al. (2012) evaluated 200 additional recipes and reached a similar conclusion: the vast majority of publicly available homemade dog food recipes would cause nutritional deficiencies if fed as the sole diet over weeks to months.
This guide covers what goes wrong, how to do it safely, and when homemade truly makes sense.
The Nutrients Most Homemade Diets Get Wrong
Calcium and Phosphorus
Muscle meat is rich in phosphorus but nearly devoid of calcium. A diet of chicken breast, rice, and vegetables (one of the most common homemade formulations) provides a calcium-to-phosphorus ratio of approximately 0.1:1. Dogs need a ratio of 1.2:1 to 2:1.
Chronic calcium deficiency causes:
- Bone demineralization and pathologic fractures
- Secondary nutritional hyperparathyroidism
- Dental disease
- Muscle tremors and weakness
In growing puppies, the consequences are even more severe and can include growth plate deformities and hypertrophic osteodystrophy.
Calcium supplementation is not optional in any homemade meat-based diet. Ground eggshell (1/2 teaspoon per pound of meat provides roughly 900 mg calcium), bone meal, or calcium carbonate must be included. The NRC recommends 50 mg calcium per kg of body weight per day for adult dogs.
Taurine
Taurine is an amino acid critical for cardiac function. While dogs can synthesize taurine from methionine and cysteine, the synthesis rate may not meet demand in all individuals, particularly large breeds. Taurine deficiency has been linked to dilated cardiomyopathy (DCM) in dogs.
Homemade diets are at particular taurine risk when:
- They use lamb, rice bran, or high-fiber ingredients that reduce taurine absorption
- They rely on plant proteins or low-quality protein sources with insufficient methionine and cysteine
- They are fed to breeds predisposed to DCM (Doberman Pinschers, Great Danes, Cocker Spaniels)
Include taurine-rich foods (heart, dark poultry meat, sardines) or supplement with 500 to 1,000 mg taurine daily for large-breed dogs on homemade diets.
Zinc
Zinc deficiency is common in homemade diets because plant-based ingredients (grains, legumes) contain phytates that bind zinc and reduce absorption. Clinical signs include skin crusting (especially around the eyes, lips, and footpads), hair loss, and impaired immune function.
Northern breeds like Siberian Huskies and Alaskan Malamutes are particularly susceptible to zinc malabsorption, making adequate zinc even more critical in homemade formulations for these breeds.
Vitamin D
Dogs cannot synthesize vitamin D from sunlight as humans can. They depend entirely on dietary sources. Most muscle meats contain minimal vitamin D. Without supplementation, homemade diets are almost universally vitamin D deficient.
Adequate sources: liver (in moderation), fatty fish (salmon, mackerel, sardines), egg yolks, or a vitamin D3 supplement.
Other Common Deficiencies
- Vitamin E: Acts as a fat-soluble antioxidant. Deficiency causes muscular dystrophy and immune suppression.
- Iodine: Essential for thyroid function. Deficiency causes hypothyroidism.
- Copper: Required for connective tissue, iron metabolism, and melanin production.
- B vitamins: Water-soluble and easily lost during cooking. A B-vitamin complex supplement addresses this.
Tools for Getting the Balance Right
Two professionally developed recipe formulation services provide the safest path to homemade feeding:
BalanceIT (balanceit.com): Developed by board-certified veterinary nutritionist Dr. Sean Delaney. Allows you to input ingredients and generates a custom supplement blend that corrects deficiencies. The EZnBalance tool creates complete and balanced recipes using your chosen ingredients. Subscription fee applies.
PetDiets.com: Run by board-certified veterinary nutritionist Dr. Rebecca Remillard. Offers custom recipe formulation with individual consultation. More expensive but provides personalized guidance.
Both services formulate recipes that meet or exceed NRC and AAFCO nutrient requirements. This is the minimum standard any homemade diet should meet.
What these tools do that internet recipes do not:
- Calculate precise micronutrient content of each ingredient
- Identify and correct deficiencies with targeted supplementation
- Adjust for your dog’s specific weight, age, activity level, and health conditions
- Account for nutrient losses during cooking
When Homemade Makes Sense
Homemade diets are genuinely appropriate in specific situations:
- Complex food allergies: Dogs that have failed multiple commercial limited-ingredient diets and require truly novel protein sources that are not available commercially
- Medical conditions requiring precise dietary control: Advanced kidney disease where commercial renal diets are refused, liver disease requiring specific protein and copper management, certain gastrointestinal conditions
- Palatability crises: Dogs refusing all commercial options, particularly during cancer treatment or end-of-life care
- Owner commitment: Owners willing to use professional formulation tools, follow recipes precisely, and have the diet periodically reassessed
Homemade diets are NOT appropriate when:
- The owner plans to “wing it” with meat, rice, and vegetables without supplementation
- The motivation is solely cost savings (properly supplemented homemade diets often cost more than premium commercial food)
- The dog has no medical indication and is thriving on commercial food
- The owner is unwilling to measure ingredients precisely or commit to periodic nutritional review
Cooking Methods and Food Safety
Safe preparation practices:
- Wash hands, surfaces, and utensils thoroughly when handling raw meat
- Cook all meat to appropriate internal temperatures (165F for poultry, 160F for ground meat)
- Store prepared food in the refrigerator for up to 3 days, or freeze in meal-sized portions for up to 3 months
- Never leave prepared food at room temperature for more than 2 hours
- Use separate cutting boards for raw meat and produce
Cooking’s effect on nutrients:
- Cooking increases digestibility of starches and some proteins
- Water-soluble vitamins (B vitamins, vitamin C) are partially lost during boiling; steaming preserves more
- Fat-soluble vitamins (A, D, E, K) are relatively heat-stable but can be lost if cooking water is discarded
- A properly formulated recipe accounts for cooking losses in its supplementation calculations
A Balanced Homemade Diet Framework
While specific recipes should come from BalanceIT or a veterinary nutritionist, the general structure of a balanced homemade dog diet includes:
- 50 to 60% protein source: Chicken, turkey, beef, lamb, fish, or eggs
- 20 to 30% carbohydrate source: Brown rice, sweet potato, oats, or quinoa
- 10 to 15% vegetables: Broccoli, green beans, carrots, spinach (lightly cooked)
- Fat source: Fish oil for omega-3s, plus a small amount of vegetable oil if needed for calories
- Calcium supplement: Ground eggshell, bone meal, or calcium carbonate
- Multivitamin-mineral supplement: Specifically formulated for homemade diets (BalanceIT supplement or equivalent)
This framework produces a diet that is approximately complete. The supplement is what closes the gap between “approximately” and “actually” complete.
FAQ
Is homemade food healthier than commercial food? Not inherently. A properly formulated commercial diet that has passed AAFCO feeding trials is more reliably complete and balanced than most homemade diets. A homemade diet formulated by a veterinary nutritionist with proper supplementation can be equally nutritious, but the margin for error is much smaller.
Can I just add a multivitamin to meat and rice? A standard human or canine multivitamin does not correct the calcium, phosphorus, and calorie balance issues in a meat-and-rice base. You need a supplement specifically designed for homemade diets that accounts for the known deficiencies in your chosen ingredients.
How much does a veterinary nutritionist consultation cost? Initial consultations typically range from $200 to $500. BalanceIT’s online tool is less expensive at approximately $10 to $20 per month. Given that nutritional deficiencies can cause health problems costing thousands in veterinary bills, the investment is worthwhile.
Can I rotate proteins in homemade diets? Yes, but each protein source changes the nutrient profile. If you rotate between chicken, beef, and fish, you need a recipe (with appropriate supplementation) formulated for each protein source. You cannot simply swap proteins and assume the diet remains balanced.
Should I add raw bones for calcium? Cooked bones are dangerous (they splinter and can cause GI perforation). Raw bones provide calcium but carry bacterial contamination risk and can cause tooth fractures, esophageal obstruction, and GI blockages. Ground eggshell or calcium supplements are safer calcium sources for homemade diets.
How do I know if my homemade diet is causing problems? Monitor for: dull coat, excessive shedding, lethargy, muscle wasting, loose stools, weight changes, and skin problems. Have blood work (complete blood count, chemistry panel, vitamin D, and taurine levels) checked 3 to 6 months after starting a homemade diet and annually thereafter.
This content is for informational purposes only and does not constitute veterinary advice. Consult a board-certified veterinary nutritionist before starting your dog on a homemade diet.
References
- Stockman J, et al. “Nutritional assessment of homemade dog food recipes from the internet.” JAVMA. 2013.
- Heinze CR, et al. “Evaluation of recipes of home-prepared maintenance diets for dogs.” JAVMA. 2012.
- Fascetti AJ, et al. “Taurine deficiency and dilated cardiomyopathy in dogs.” JAVMA. 2003.
- AAFCO. “Nutrient profiles for dogs.” 2024.
- National Research Council. “Nutrient Requirements of Dogs and Cats.” 2006.