I have a five year old son and he has a protruding belly and not only am I concerned but he is as well. He told me that he didn t want a big belly but he wants a flat one like mommy. This broke my heart. He s a picky eater. We have gotten rid of the junk food in the house and started attending a healthy eating clasd as a family but I m concerned that he may have a medical condition. Please advise.