Well, my point is the following if this guy who is really YOUNG is going to find out that he keeps hair while reducing his sugar supply then for sure he needs to start a free of sugar diet ...And believe me dont bother for the necessary vital glucose supply : it will just find its way to its body : whether it is food occuring (and it occures all over the place) or through the body metabolition. Also you have to understand well what I said "free of sugar diet". I didt say free of Glucose diet ! watch out ! that means stay away of reaffined sugar sugar. Glucose is found in sufficient amounts even in bread. Do you seriously think that a young man has any chances to get glucose under supplied while living the modern life-style way !!!