Peanut Butter Time!

The dude loves PB. We started off the snack with a banana, I would put a dab of PB on the top and we would take turns taking a bite. But Max decided that I could have the banana and he would have the PB. My mom always says Max has such a sweet tooth that he gets from my dad...but this is awfully similar to some pics and video I have seen posted on You Tube of my mom doing pretty much the same thing. Why is he so skinny?