How to Choose a Cat Food
Cats are obligate carnivores: a good cat food starts with animal protein and covers the taurine a cat cannot make on its own. Here is what to read on the label and how to combine wet and dry.
Step 1: work out the daily portion
A spayed 9 lb indoor cat and an outdoor hunter differ in needs by more than 30%. Use the cat food calculator: enter weight, lifestyle and the calories from your label and you get the daily portion in cups.
Step 2: what to look for on the label
- The AAFCO statement: "complete and balanced" for the right life stage covers everything, including taurine. Toppers and lickable treats are extras, not a diet.
- A named animal protein first: "chicken 32%" tells you far more than "meat and meat by-products".
- High protein: for dry food, roughly 30 to 40% protein; cats need substantially more protein than dogs.
- Calorie density: dry cat foods usually run 350 to 450 kcal/cup, canned food 70 to 100 kcal per 3 oz can: that is why wet portions look so much bigger.
- Formula by status: kitten, adult, indoor or neutered, senior: the neutered formulas cut calories at the same volume.
Wet, dry or both
- Wet: lots of water (good for kidneys and the urinary tract), highly palatable, pricier per calorie, spoils quickly once opened.
- Dry: convenient, economical, can sit in the bowl: but the cat must drink enough water separately.
- Combination: wet food at set times plus measured dry: the most common veterinary recommendation for indoor cats.
Red flags
- No named meat and no percentages anywhere on the label.
- "Intermittent or supplemental feeding" products sold as a main diet.
- Abrupt food switches: transition gradually over 7 to 10 days.
- Dog food fed to a cat: it lacks taurine, which damages the heart and eyesight.
Where to buy
We are preparing hand-picked cat food recommendations by calorie density and ingredients. Until then: run the numbers with the calculator → and compare labels on Chewy or Amazon using the steps above.
Frequently asked questions
Wet or dry food for a cat?
A combination is the most common recommendation. Wet food is up to 80% water and helps cats that drink little (which is most cats), supporting the kidneys and urinary tract. Dry food is convenient and cheaper per calorie. A typical setup: wet food at 1 to 2 set meals plus a measured amount of dry.
What changes after spay or neuter?
Metabolism slows while appetite often grows: a spayed or neutered cat needs about 15 to 20% fewer calories. If the portion stays the same, weight creeps up over months. Switch to an indoor or neutered formula, or simply reduce the portion per the calculator.
Can a cat eat a vegetarian diet?
No. Cats are obligate carnivores: they need taurine, arachidonic acid and preformed vitamin A, which only come from animal sources. Taurine deficiency causes blindness and heart disease. A complete cat food is always built on animal protein.
How many meals a day should a cat get?
Cats naturally eat many tiny meals: 2 to 3 feedings a day is the minimum, and an automatic feeder or measured free-feeding works well for cats that do not overeat. What matters is that the daily total matches the math, not the number of servings.
This guide is informational and does not replace veterinary advice, especially for urinary issues, allergies or kidney disease. See also the methodology behind our calculators.