Starvin' Marvin

So this morning I'm cleaning in the living room, and I come into the kitchen to find Ben sitting on a stool eating Goldfish out of the box. Okay, no biggie. He has a few and I put them away. Pretty soon I come out of the laundry room to find him standing behind a chair (I almost didn't see him), and he stops chewing when he sees me. He's eating big marshmallows and probably has 2 in his mouth. So I put them on a higher shelf. A bit later I was in the bathroom cleaning, and here he comes with a box of graham crackers. Is he just starving, or is he eating because he can?