Yes it is worrying. I played competitive sports into my 30's and even with a back problem I an still in fairly good shape. When I start training again which I will do then I will hopefully drag them into doing the same. You are what you eat and yes I could eat better, but I know it is only 3 months to get back into shape. My son lost weight recently which was good to see and is looking fit yet fitness wise I am on a par. Parents need to help their kids help themselves and there are many over weight kids today that have no chance of ever being healthy.