Check out a book titled call "The Joy of Chinchillas". Chins can have fresh veggies and fruits, of certain kinds, in small amounts. the key being VERY small amounts. But, for ages chins in captivity have not had fresh things for the most part, so they are, for the most part, not used to digesting these as much anymore. That's why with their already VERY sensitive digestives systems, most breeders etc will recommened against it because there can be a fine line between an OK amount and an amount that can lead to severe gastrintestinal problems. And, some chins can personally handle things that other chins can't .So definitely be very careful feeding fresh things to chins. The main things they NEED are qualty, fresh pellets, and quality hay, and good clean drinking water.