How the calorie estimate works
The calculator uses the same Resting Energy Requirement (RER) formula referenced in Dog Food Logic: RER = 70 × (weight in kg)^0.75. This baseline is multiplied by a life-stage factor — 1.6 for a neutered adult, 2.0 for a puppy under 4 months, 1.4 for a senior — to give daily metabolizable energy (ME). Your recipe's kcal per 100 g converts ME into grams of cooked food. The result is a starting estimate; body condition and your vet's guidance should always take precedence.
Batch cooking and storage
The calculator separates the first few refrigerated days from portions to freeze. Multiple cookbooks in the project library recommend portioning before freezing, keeping cooked meals refrigerated only for a short window, and thawing the next serving in the refrigerator. Use the storage plan for logistics, not as a guarantee that a recipe is safe or nutritionally complete.
Before feeding a recipe every day
Check calcium, vitamins, minerals, ingredient safety, and life-stage needs with our homemade dog food checklist. Portion math alone cannot certify a complete diet.
Ingredient ratios explained
The ingredient split (protein / vegetables / starch) shown by the calculator is a portioning shortcut, not a nutritional guarantee. The ratios are grounded in the homemade feeding books in our library:
- ~50% animal protein — Dogs are carnivores and require animal-based protein for optimal health. Only about 54% of corn protein is digestible; named meat sources (chicken, turkey, beef, fish) are far more bioavailable. Canine Cuisine 101.
- ~30% vegetables — Carrots, green beans, pumpkin, spinach, and zucchini contribute vitamins, minerals, and fiber for digestive health. Starchy vegetables (sweet potato, butternut squash) should make up 10–25% of the vegetable portion to limit sugar. Homemade Healthy Dog Food (Sharp); Becker's Real Food.
- ~20% starch / fiber — Brown rice, oatmeal, and quinoa provide digestible carbohydrates and dietary fiber that support gut regularity and steady energy. Homemade Healthy Dog Food (Sharp).
- Homemade recipes naturally run low-carb — Meat-and-vegetable combinations typically contain around 5% of calories from carbohydrates, consistent with a biologically appropriate diet. Becker's Real Food.
Protein sources — rotating for variety
Becker's Real Food recommends rotating among several proteins to provide a broad amino acid and micronutrient spectrum. Feeding the same single protein daily can create nutritional gaps over time.
| Protein | Book notes |
|---|---|
| Chicken (dark meat) | High in omega-6; do not use as sole protein. Dark meat offers higher nutrient levels than white meat. |
| Turkey | Slightly higher fat than chicken per gram; useful for active dogs needing more calories. |
| Beef | Core rotation protein; good iron and zinc source. |
| Eggs | Highly digestible complete protein. Eggs from flax- or algae-fed hens have superior omega-3, vitamin D, and vitamin E. |
| Sardines (in water, no salt) | One of the best omega-3 sources. Adding sardines or oily fish raises EPA and DHA significantly — benefiting skin, coat, and joints. Use 1–2 small sardines per meal for a medium dog. |
| Cooked salmon / white fish | Lean high-quality protein, low saturated fat. Always cooked — raw Pacific salmon can carry Neorickettsia. |
| Lamb / duck / bison | Novel proteins useful for dogs with sensitivities to chicken or beef. Lean cuts preferred. |
Calcium — the most common gap in homemade diets
Meat is rich in phosphorus and almost devoid of calcium. Without a calcium source, the calcium-to-phosphorus ratio inverts, leading to bone loss over time — especially dangerous in puppies. A ratio close to 1.3:1 (calcium to phosphorus) is the target for balanced homemade recipes. (Becker's Real Food)
Practical calcium guidelines (Canine Cuisine 101)
- • Adult dogs: 800–1,000 mg calcium supplement per pound of prepared food.
- • Adult dogs (simpler measure): ½ tsp dried eggshell powder per pound of food.
- • Puppies: 1,200–1,500 mg calcium per pound — higher than adults due to bone development needs.
- • Options: dried eggshell powder, calcium carbonate, or a balanced veterinary mineral mix.
Life-stage adjustments
Puppies (under 12 months)
Need roughly 2–3× the caloric intake of an adult dog of the same weight. Most veterinary nutritionists recommend commercial puppy food in the first year to ensure correct calcium and phosphorus balance. If preparing homemade food for a puppy, use a veterinarian-formulated recipe only — improvised recipes cause irreversible skeletal damage. (Dog Food Logic; Canine Cuisine 101)
Senior dogs
Calorie needs decrease with age due to lower activity — use the Senior / less active factor (1.4×). Senior diets benefit from higher fiber (3–5%) to support digestion, with reduced fat while maintaining quality protein. For dogs with dental issues, add warm water or low-sodium broth to soften the food. (Homemade Dog Food, Liberty; Homemade Healthy Dog Food, Sharp)
Overweight dogs
Target weight loss at 1–2% of body weight per month — faster loss risks muscle depletion. Use the Weight-loss plan factor (1.0×). Practical changes: switch to lean ground meats, remove chicken skin, reduce starchy ingredients, and substitute high-volume low-calorie vegetables (green beans, zucchini, cucumber) for starch. An estimated 25–40% of US dogs are overweight or obese. (Becker's Real Food; Canine Cuisine 101)
After spay / neuter
Most dogs need fewer calories to maintain weight after spaying or neutering. Switch from the Intact adult factor to the Neutered/spayed factor (1.6×), and monitor body condition weekly for the first month. (Becker's Real Food)
Foods to never include in homemade recipes
- Cooked bones — splinter into sharp fragments that lacerate the GI tract.
- Onion, garlic, leeks, chives (raw, cooked, or powdered) — cause hemolytic anemia.
- Grapes and raisins — no safe dose; can cause acute kidney failure.
- Xylitol — in sugar-free products; causes fatal hypoglycemia.
- Chocolate and caffeine — theobromine is toxic even in small amounts.
- Alcohol or yeast dough — CNS toxicity; yeast dough also expands in the stomach.
- Macadamia nuts, avocado — toxic even in moderate amounts.
- Raw salmon / trout (Pacific) — may carry Neorickettsia; always cook fish.
Full guide with mechanisms and first aid: Foods dogs cannot eat →
Frequently asked questions
- How much homemade food should I feed my dog?
- Start with calories. The Resting Energy Requirement (RER) for an inactive adult is 95 × (weight in kg)^0.75 kcal/day; for an active adult it is 130 × (weight in kg)^0.75 (Dog Food Logic). Multiply by a life-stage factor (e.g. 1.6 for a neutered adult, 2.0 for a puppy under 4 months), then divide by your recipe's calories per 100 g. This gives cooked grams per day. Adjust based on body condition and your veterinarian's advice.
- Is homemade dog food automatically complete and balanced?
- No. Meat, rice, and vegetables can meet calories but still miss calcium, trace minerals, vitamins, and omega-3 fats. Canine Cuisine 101 specifies adding 900 mg calcium per pound of food prepared, or ½ tsp dried eggshell powder per pound. Long-term homemade diets should use a complete recipe from a veterinarian or board-certified veterinary nutritionist.
- What ingredient split should homemade dog food use?
- A commonly recommended cooked split is roughly 50% animal protein, 30% vegetables, and 20% starch or fiber source. Beckers Real Food notes that homemade meat-and-vegetable recipes typically contain around 5% of calories from carbohydrates, consistent with a low-carbohydrate approach. That split is a portioning shortcut — minerals and fatty acids still need formulation on top of it.
- What is the calcium-to-phosphorus ratio for homemade dog food?
- A calcium-to-phosphorus ratio close to 1.3:1 is common in balanced homemade dog recipes and supports skeletal health (Becker's Real Food). Meat is high in phosphorus and low in calcium — without a supplement (eggshell powder, calcium carbonate, or a balanced mineral mix) the ratio inverts and can cause bone problems over time. Canine Cuisine 101 recommends 800–1,000 mg calcium supplement per pound of food prepared for adult dogs; puppies need 1,200–1,500 mg per pound.
- Which protein sources are best for homemade dog food?
- Rotate between several proteins for a broad nutrient profile. Becker's Real Food recommends cycling through chicken, turkey, beef, eggs, and sardines. Sardines are especially valuable: adding oily fish raises EPA and DHA levels significantly, benefiting skin, coat, and joints. Homemade Healthy Dog Food (Sharp) lists lamb, bison, duck, salmon, white fish, and eggs as additional safe options. Dark poultry meat delivers higher levels of certain nutrients than white meat.
- Do I need omega-3 supplements for a homemade diet?
- Yes, unless the recipe regularly includes oily fish. Becker's Real Food: "Adding krill oil or oily fish significantly raises EPA and DHA levels beyond minimum recommendations." The target omega-6 to omega-3 ratio for dogs is near 5:1. Fish oil or sardines are the most practical whole-food source. Krill oil is an alternative with good bioavailability.
- Can puppies eat homemade food?
- Only with a veterinarian-formulated recipe. Canine Cuisine 101 states: "Most canine nutritionists recommend a high-quality commercial puppy food during the first year to ensure proper calcium and phosphorus balance." If preparing homemade, calcium requirements are higher — 1,200–1,500 mg per pound of food vs 900–1,000 mg for adults. Puppies under 4 months need roughly 3× the caloric intake of an adult dog of the same weight (Dog Food Logic).
- How is feeding a senior dog different in a homemade diet?
- Senior diets often benefit from higher fiber (about 3–5%) to support digestion, with reduced fat while maintaining quality protein (Homemade Dog Food, Liberty). Calorie needs decrease with age, so the same recipe fed in smaller portions can prevent obesity. Homemade Healthy Dog Food (Sharp) recommends soft, moist preparations for seniors with dental issues — adding warm water or broth to the meal aids chewing.
- How quickly should an overweight dog lose weight on homemade food?
- Overweight dogs should lose weight at 1–2% of body weight per month (Becker's Real Food). Faster loss risks muscle depletion. To reduce calories in a homemade recipe: use lean ground meats, remove chicken skin, reduce starchy ingredients, and increase low-calorie vegetables like green beans or zucchini (Canine Cuisine 101). An estimated 25–40% of US dogs are overweight or obese — gradual, consistent reduction is safer than crash dieting.
General planning tool only. For a complete homemade dog diet, use a veterinarian-formulated recipe or consult a board-certified veterinary nutritionist.