I have one too!!! Tanner (almost 13 months) eats a lot. Right now he's obsessed with watermelon. I'm not kidding he could eat a quater of a whole watermelon in a sitting. It's like crack for him.

But thankfully it's something I have no problem with him eating a lot of. Strangely my son loves very healthy foods, things you would guess a child would hate: broccolli, beans, fruit, veggies, salad, fish, tomatoes. I have never given him a food that he hasn't liked. It's almost like a game for me and DH now to see if we can find something he doesn't like...oh wait, he tasted a lime wedge once and didn't like that!
I also worry about all this childhood obesity and I wonder if he's just eating because he likes food so much and who cares if he's full or not. The other thing Tanner does is he'll stuff as much of it in his mouth at one time. I have seen him put like 6-7 goldfish crackers in his mouth at once. I have to watch him because I don't want him to choke!