Food & NutritionMy cat has early kidney disease. What phosphorus level is safe?
I don't have a completely simple answer for you, but I can give you a chart for comparing phosporus levels in different foods.
http://catinfo.org/docs/CatFoodProteinFatCarbPhosphorusChart.pdf
For maintenance diets, AAFCO minimum for phosphorus is 1.25 g/1000 Kcal (1.25% on a dry matter basis) so, if you are looking for non-prescription diets, there will be none lower than that, so you can try to look for diets that are closer to that value.
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Updated on September 24th, 2025