Iguana favoring leg?

it could be diet as LG said but sometimes they just hurt themselves they jump wrong etc. remember they do not get the excercise they would get in the wild dodging iguana haters and eaters. igs sometimes eat eggs in the wild so they are not welcomed in most other animal communities. and without the excercise and constant work outs they can get lazy and jump from one spot to another and catch a branch wrong. by the way you most likely will not feel a break they probably wont let you touch themanyway if its that bad. mbd is something I am pretty sure LG is refering to and I most hardily agree. although your description of diet seems pretty sound. how far out is your next 6 month wellness check up? maybe you could move it up and get him in now just to be on the safe side.