Originally posted by WolfChan
Anything causes cancer in high enough quantities, I wouldn't worry about a little bit of orange. I gave my girls avocado before I learned that it was one of the "forbidden" foods. I have always heard it as male ratties shouldn't have citrus, but I know a few people who have given their boy rats oranges without troubles.

Exactly. I will NEVER not give my rats Avocado. In fact it's one of the miracle workers for abused and neglected rats who are too sick to eat or need to add weight in a short amount of time.