Sorted list
Cat foods by phosphorus, lowest first.
Every food in our database with published phosphorus and calorie data, sorted by mg of phosphorus per 100 kcal and split into wet and dry. The order comes only from nutrition data, never from commissions. A lower number doesn’t by itself make a food right for your cat — ask your vet.
Wet foods
- 1Renal Support D Thin Slices in Gravy Wet Cat Food
80mg / 100 kcal - 2Renal Support E Loaf in Sauce Wet Cat Food
90mg / 100 kcal - 3Renal Support T Thin Slices in Gravy Wet Cat Food
100mg / 100 kcal - 4K+M Kidney + Mobility Support Canned Cat Food
110mg / 100 kcal - 5NF Kidney Function Advanced Care Feline Formula Wet Pate Cat Food
114mg / 100 kcal - 6k/d Pâté with Chicken Cat Food
116mg / 100 kcal - 7k/d Chicken & Vegetable Stew Cat Food
118mg / 100 kcal - 8k/d Vegetable & Tuna Stew Cat Food
118mg / 100 kcal - 9k/d Pâté with Tuna Cat Food
119mg / 100 kcal - 10Renal Support Early Consult Loaf in Sauce Wet Cat Food
120mg / 100 kcal - 11NF Kidney Function Early Care Feline Formula Wet Pate Cat Food
206mg / 100 kcal
Dry foods
Dry foods are lower in moisture, so cats on kibble take in less water. Many vets prefer wet food for cats with CKD where the cat will eat it.
- 1Renal Support S Dry Cat Food
100mg / 100 kcal - 2Renal Support A Dry Cat Food
110mg / 100 kcal - 3Renal Support F Dry Cat Food
110mg / 100 kcal - 4Renal Support + Hydrolyzed Protein Dry Cat Food
110mg / 100 kcal - 5NF Kidney Function Advanced Care Feline Formula Dry Cat Food
116mg / 100 kcal - 6k/d with Ocean Fish Cat Food
118mg / 100 kcal - 7k/d + j/d Chicken Flavor Cat Food
124mg / 100 kcal - 8k/d with Chicken Cat Food
125mg / 100 kcal - 9K+M Kidney + Mobility Support Dry Cat Food
130mg / 100 kcal - 10Renal Support Early Consult Dry Cat Food
130mg / 100 kcal
Before you change foods
Is the lowest-phosphorus food the best one for my cat?
Not necessarily. The best food is one your cat will actually eat and that fits your vet’s plan. A cat that eats well on a moderate-phosphorus food may be better off than a cat refusing a very low one. Phosphate binders are another tool your vet may discuss.
How should I switch foods?
Slowly, usually over two to four weeks, mixing a little more of the new food each day. Never let your cat go without eating while you switch. If your cat is nauseous, ask your vet about anti-nausea support before changing diets, so your cat doesn’t learn to dislike the new food.
Should I stop my cat’s prescription diet if they will eat a regular low-phosphorus food?
Please talk to your vet before stopping a prescription diet. Renal diets are adjusted in more ways than phosphorus, and your vet can help you weigh the options for your cat.
The KidneyPaw app
Keep a list of foods your cat actually eats.
KidneyPaw decodes lab reports in plain English, looks up the phosphorus in any food, and keeps meds and fluids on track for the whole family. Free to start.