Petco Text Logo
Petco Pet Logo

When is the right time to transition my cat from kitten to adult food?

Updated On September 23rd, 2025

Pet's info: Cat | American Bobtail | Male | 5 years and 7 months old

When is a good time to transition cats from kitten food to adult food?

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Christie Long, DVM

Veterinarian, Certified Veterinary Acupuncturist

Published on September 25th, 2018

Kitten food is specially formulated for kittens to achieve proper growth and development, and as such, is higher in calories than adult cat foods. Kittens should be fed kitten foods until they reach about 90% of their adult size, which typically occurs around 10-12 months of age. Any time a diet change is made, it should be done so gradually to minimize the risk of developing an upset stomach with vomiting and/or diarrhea. Transition the kitten food and adult food by mixing the foods together over 5-7 days, beginning with 75% old food and 25% new food for a day or two, then 50% old food and 50% new food, and then 25% old food with 75% new food.

Vote icon

56Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored