Cats are obligate carnivores, meaning they biologically require nutrients found only in animal tissue — this is the single biggest difference between feeding a cat and feeding a dog, and it’s why “just feed them whatever” is worse advice for cats than for almost any other common pet.
How Much to Feed
Most adult indoor cats need around 200-300 calories a day, depending on weight and activity level — a cat that spends most of the day sleeping needs meaningfully less than an active, playful cat. Feed measured meals rather than free-feeding dry food, which is one of the most common causes of feline obesity.
Wet Food vs. Dry Food
Wet food has a major advantage for cats specifically: higher moisture content. Cats evolved from desert-dwelling ancestors and often don’t drink enough water on their own, so wet food helps support kidney and urinary tract health — a common problem area for cats, especially as they age. Dry food is more convenient and helps with dental wear, but shouldn’t be the only water source a cat gets.
Reading a Cat Food Label
Look for an AAFCO statement confirming “complete and balanced” nutrition for the right life stage, and a named animal protein listed first. Taurine — an amino acid cats can’t synthesize on their own — should be included; its absence causes serious heart and eye problems over time, which is one reason cats shouldn’t be fed a homemade or dog-food diet without careful formulation.
Foods That Are Dangerous for Cats
Onions and garlic, chocolate, grapes and raisins, and raw dough are all toxic. Cats are also more sensitive to certain medications (including some common human pain relievers) than dogs — never give a cat any medication without vet guidance.
Related Reading
See our Best Food for Your Cats buying guide and How Much Should You Feed a Cat?
