Chinchillas can eat apples, however they don’t necessarily need them. If you feed apples or other fruits to your chinchillas, always think of them as a treat and be sure to feed them in moderation. Chinchillas have delicate digestive systems and apples are not what they would be eating in the wild. If you feed too many apples or other fruits, you could unintentionally harm your chinchilla. Remember, the most important things to provide your pet chinchilla with are fresh hay, pellets, and water.
We hope this helps, and as always if you have any serious questions about the diet of your chinchilla the best bet is to talk with your veterinarian.
Till next time, love those Chins!