My Franklin just turned 8 months, he's a relatively big boy I think already at around 40 to 45 lbs. He is halfway thru an antibiotic for Puppy Pyoderma, and I am starting to wonder if it's due to an allergy, so I would like to switch him to a new adult food to try some options out. I've always read to switch to adult food at 12 months, but some people are telling me it's okay to do it alittle early. Any advice would be greatly appreciated!