Adult Cat Nutrition Basics

What Should I Feed My Adult Cat?

As your cat grows out of kittenhood, it's time to switch from kitten food to an adult formula. Talk to your vet about timing — typically after neutering or at one year old, whichever comes first. For the full transition process, see our guide on how to switch your cat's food.

Choose a formula specifically designed for adult cats — adult food provides the right nutrient and calorie balance for maintenance, not growth. Kitten food is too calorie-dense for indoor adult cats.

Look for Protein

Cats are obligate carnivores — they thrive on animal-based protein. The best adult cat foods have more protein and fewer grains. Wet foods typically have a higher protein concentration. Look specifically for taurine — an amino acid found only in animal proteins (like chicken and fish) that's critical for vision, digestion, muscle function, and immune health.

Note: A cat's coat is made almost entirely of protein. Inadequate protein leads to weak, dry, brittle fur and hair loss.

Consider Dental Health

Dry kibble helps naturally clean your cat's teeth as they chew. Cats on exclusively wet or raw diets can develop dental problems. A balance of wet and dry food — mixed or alternated — is ideal.

Nourish Their Skin and Coat

Dry skin or patchy fur often signals a fatty acid deficiency. Omega-6 and omega-3 fatty acids are essential for healthy skin and a shiny coat. Look for ingredients like salmon and other fish, which are naturally high in these good fats.

How Much Should I Feed My Cat?

Most adult cats need about 2/3 cup of food per day (wet and dry combined). If feeding twice daily, split into two equal portions. Use the right food bowls to make portioning easy.

Some owners open-feed (leaving food out freely) — this only works with dry food, as wet food spoils quickly and should be removed after about 20 minutes. Don't leave dry food out for more than three days. Establishing a consistent feeding routine is best for your cat's health and happiness.

Tip: Feeding at set intervals makes it easier to notice changes in appetite — an early sign of illness.

Don't Forget to Hydrate

Cats have a naturally low thirst drive and often don't drink enough water. Help them stay hydrated by placing multiple water bowls around the house. Some cats prefer moving water — try a pet fountain if your cat shows interest in the running faucet. Keep bowls clean and full at all times; debris or odor will put your cat off drinking. Browse our pet feeding and watering collection for fountain and bowl options.