Recipe nutrition checker
Add home-made or raw ingredients to check calcium:phosphorus and missing nutrients
How is it calculated?
For each ingredient, nutrients per 100 g × grams are added up and divided by the recipe’s total calories to give amounts per 1000 kcal — the fairest comparison because cats eat to calories. Ingredient data comes from the CatLab product database (label values) and the USDA food database.
Vitamin E mg and IU are treated as roughly equal, and ingredients without a calorie value are estimated from protein, fat and carbs (modified Atwater). Cooking can reduce taurine and vitamin B1.
Questions
What is it compared with?
AAFCO adult maintenance minimums for cats, converted to per 1000 kcal (taurine 500 mg for wet recipes). Calcium to phosphorus of 1:1 to 2:1 is the good range. Kittens and pregnant or nursing cats need more.
Does "no data" mean it is missing?
No — the ingredient data simply has no value. Food databases often lack taurine or iodine, and pet food labels list only main nutrients. Unknown values are never counted as low.
What do home-made diets most often miss?
Calcium — muscle meat or fish alone often gives worse than 1:10. Next are taurine (cooking reduces it), iodine, vitamin E and zinc, which is why home diets usually add supplements, bone or liver.
Estimates for healthy-weight cats based on NRC 2006 and IRIS guidance. A cat with a medical condition may need different numbers.