What are they feeding him?

We just got another update on Sitota. Our adoption agency has such a fabulous care center for the kids. I feel as though Sitota is in such good hands and they do a great job of keeping us up to date on his growth and development. His report was glowing again. He is right on track and has accomplished nearly every 6-8 month milestone (except he doesn't creep yet, but he is just over 6 months old)and he is now up to about 15lbs! He has almost doubled in weight since we were first introduced to him 2 months ago. As Aaron says... the boy likes to eat! He should fit in fine with Isabel (I am still not sure where all her food goes because it certainly doesn't go on her body... she is almost 6 years and weighs a whopping 34lbs).