It really is a shame how people are letting thier kids gorw up these days. I grew up outdoors and eating right, but I do get taco bell or something of the like a few times a week. But I do eat plenty of fruits and vegetables on a regular basis, which is kinda wierd since everyone else my age doesn't (I am only 20). I'm in great shape pretty muscular and weighing in at only 145lbs. I could prolly stand to gain a little weight actually.
As for your Nephews problem take him camping and try to get him interested in the outdoors more. Generally people who are more interested in the outdoors are in better physical shape and eat better on a regular basis.
