The complete guide to kitten nutrition, month by month

Kitten nutrition changes faster than almost any other stage of pet care — a feeding plan that's right at 8 weeks is wrong by 6 months. Here's the timeline, broken down by what's actually changing developmentally.

0–4 weeks: nursing (or a proper replacement)

Kittens this young should be nursing. If you're hand-rearing an orphaned kitten, use a real kitten milk replacer — never cow's milk, which most kittens can't digest properly.

4–8 weeks: the weaning window

This is when solid food gets introduced gradually, usually as a gruel (kitten food mixed with warm water or replacer) before moving to drier textures. Expect a messy few weeks.

2–6 months: peak growth, peak appetite

Kittens in this window need roughly three times the calories per pound of an adult cat. This is not the phase to free-feed cautiously — kitten-formula food, offered generously, is appropriate here.

6–12 months: the transition to adult food

Growth slows but doesn't stop. Most cats can transition to adult food around 12 months, though large breeds (Maine Coons especially) may benefit from staying on kitten formula slightly longer.

1. Always transition foods gradually over 5–7 days to avoid stomach upset.
2. Fresh water matters as much as food — especially for cats who don't drink much.
3. If a kitten stops eating for more than 24 hours, that's a vet visit, not a wait-it-out.