Articles
Home cooked dog food, with the math shown.
Each article answers one question with the number, the units and the conditions, then shows the formula and the source. Recipe numbers are real output from the Petcare engine, never rounded for effect. Every claim carries an evidence grade.
- The supplements a homemade dog diet needs, and the ones it does not
Which nutrients a home cooked dog food recipe cannot get from food, computed for a 20 kg dog, and what the evidence says about eight common supplements.
2 October 2026 · 1,837 words - Why per pound feeding rules fail small and large dogs
A 2 kg dog needs about 94 kcal per kg a day and a 40 kg dog about 45 kcal per kg. The RER formula explains why flat per pound and percent rules miss both.
2 October 2026 · 1,474 words - Omega 3 for dogs, EPA and DHA by body weight
How much EPA plus DHA a healthy dog needs, Petcare's 50 mg per kg floor for joints and skin, the NRC upper limit, and the salmon or fish oil to supply it.
2 October 2026 · 1,488 words - How much homemade food to feed your dog: grams by weight and recipe
A 20 kg neutered adult dog needs about 1,059 kcal a day, which is 728 g of Petcare's recipe. Table from 5 to 50 kg, with the formula and sources.
2 October 2026 · 1,640 words - Calcium for homemade dog food, how much, and why the ratio to phosphorus matters
How much calcium carbonate or eggshell a home cooked recipe needs for 8, 20 and 35 kg dogs, computed from the recipe's phosphorus, and the limits.
2 October 2026 · 1,529 words - AAFCO, FEDIAF and NRC: which standard should a homemade recipe meet?
NRC 2006 is the science, AAFCO and FEDIAF are the label rules. What each sets, in which units, how they differ for adult dogs, and how to check a recipe.
2 October 2026 · 1,768 words
Petcare is software, not veterinary advice. It builds recipes for healthy adult dogs; anything medical goes to your vet.