[header] How to choose food for a kitten [title] Consider the age of your kitten. [step] Your kitten won't need to start eating cat food until it's at least four to six weeks old. Before this point, the kitten should still be nursed exclusively by the mother cat. 
Kittens from seven weeks to one year old should be eating kitten food. [substeps] Once your cat is a year old, you can transition to adult cat food.