So by your lack of response to my question, "What age and weight is your child," I can only assume (shame on me) that he is younger but maybe he had some babyfat that he could afford to get rid of???

He and the coach made the decision? Losing that kind of weight should be YOUR decision, as his parent (unless his coach is his parent as well) My son told me he was going to drop 3 lbs to go to a national tournament and I told him over my dead body. He doesn't have 1 lb to lose, let alone 3.

I hope the lifestyle change you spoke of works for your son.