How Much Homemade Dog Food to Feed My Dog?

Most adult dogs need roughly 25–30 calories per pound of body weight per day from a balanced homemade diet, split into two meals. A 50-pound dog lands around 1,250–1,500 kcal, which usually works out to 2½–3½ cups of cooked food depending on the recipe's calorie density.

That's the short answer. The longer one matters more, because homemade food varies wildly in calories per cup, and feeding by volume without knowing the calorie density is how dogs end up underfed or 10 pounds overweight by year two.

Start with calories, not cups

Commercial kibble lists kcal/cup on the bag. Your homemade batch doesn't. So you need to estimate calorie density before you can portion anything.

A typical balanced homemade recipe (lean protein, cooked grain or starch, vegetables, fat, vitamin/mineral mix) runs around 400–600 kcal per cup of cooked food. Higher-fat recipes (more salmon, more oil) push toward 700+ kcal/cup. Lower-fat, veggie-heavy recipes drop toward 300 kcal/cup.

Until you know your recipe's density, weigh and log everything for one batch. Then divide total kcal by total cups. You only have to do this once per recipe.

The daily calorie target

The National Research Council's Resting Energy Requirement (RER) formula is the starting point vets use:

RER (kcal/day) = 70 × (body weight in kg)^0.75

Then you multiply RER by an activity factor:

• Spayed/neutered adult, average activity: 1.6 × RER
• Intact adult: 1.8 × RER
• Weight loss: 1.0 × RER
• Active working dog: 2.0–5.0 × RER
• Puppy (under 4 months): 3.0 × RER
• Puppy (4 months to adult): 2.0 × RER
• Senior, low activity: 1.2–1.4 × RER

A 50-lb (22.7 kg) neutered adult: RER ≈ 728 kcal. Daily target ≈ 1,165 kcal. A 20-lb dog: about 600 kcal/day. An 80-lb dog: about 1,700 kcal/day.

Run your dog's numbers through the food portion calculator instead of doing the math by hand.

A worked example

Bailey is a 45-lb spayed Lab mix, six years old, moderately active (two 20-minute walks, no working role).

• Weight: 45 lb = 20.4 kg
• RER: 70 × (20.4)^0.75 = 70 × 9.62 ≈ 673 kcal
• Daily target: 673 × 1.6 = 1,077 kcal

Bailey's homemade recipe (cooked chicken thigh, brown rice, carrots, peas, fish oil, balance powder) tests at 520 kcal/cup.

1,077 ÷ 520 ≈ 2.07 cups/day. So Bailey gets a slightly heaping cup, twice a day. Treats come out of that budget. If you're tossing her 100 kcal of training treats, drop her meals to 977 kcal of food (about 1.9 cups).

Adjusting for life stage

Puppies burn calories fast and need more protein, fat, calcium, and phosphorus than adults. Homemade puppy diets are high-stakes. Calcium-to-phosphorus ratios that drift outside 1:1 to 1.8:1 cause skeletal problems, especially in large breeds. Work with a board-certified veterinary nutritionist (DACVIM-Nutrition) for any puppy under a year. The BalanceIT and PetDiets services run about $150–$300 per custom recipe.

Seniors typically need 15–20% fewer calories than adults at the same weight, but more high-quality protein, not less. Old advice to cut protein in healthy seniors is outdated. The 2014 AAHA senior care guidelines reversed that recommendation.

Pregnant or lactating dogs can need 2–4× their normal calorie intake by peak lactation. Free-feed during this window.

Weight check, not just math

The math gets you in the neighborhood. Your hands confirm it.

Every two weeks, do a body condition check. You should feel ribs easily with light pressure, see a waist tuck from above, and see an abdominal tuck from the side. The 9-point Body Condition Score from the WSAVA is the standard. A 5/9 is ideal.

If your dog gains a pound a month on your portion, you're overfeeding by about 100 kcal/day. Drop the daily portion by 10% and recheck in two weeks.

Weigh your dog monthly. Same scale, same time of day. A 10% weight change in either direction means recalculate.

The balance problem nobody talks about

Calories are the easy part. Nutritional completeness is where most homemade diets fail. A 2013 UC Davis study (Stockman et al., JAVMA) reviewed 200 homemade diet recipes from books and websites and found that 95% had at least one nutrient deficiency, and 83% had multiple. Common gaps: zinc, vitamin D, choline, EPA/DHA, copper.

If you're cooking for your dog long-term, the recipe needs a complete vitamin/mineral premix (BalanceIT, Hilary's Blend) or a custom formulation from a veterinary nutritionist. Chicken, rice, and carrots alone won't cut it past a few weeks.

Quick portion reference

For a balanced homemade diet averaging 500 kcal/cup, a neutered adult of average activity needs roughly:

• 10 lb dog: ~½ cup/day
• 25 lb dog: ~1¼ cups/day
• 50 lb dog: ~2¼ cups/day
• 75 lb dog: ~3 cups/day
• 100 lb dog: ~3¾ cups/day

These are starting points. Recalculate for your recipe's actual calorie density and your dog's body condition after two weeks.

Run the numbers for your dog's exact weight and recipe: /paws/tools/food-portion-calculator

Recommended

• Raw Wild Dog Food — Single-source-protein freeze-dried raw. 120-day cookie window.
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