some schools are now banning chocolate milk blaming it for attributing to the obesity epidemic in america. here is deborah roberts. reporter: it was once the sunny spot in a kid s dreary day. the wonderful chocolaty taste. reporter: ah, the magic of chocolate milk. that was then, this is now. with close to a third of u.s. kids overweight, nutritionists, parents and even the first lady with her let s move campaign they re good. reporter: are waging a war on childhood obesity. and the latest battle is in school lunch rooms over chocolate milk. as far as i m concerned, chocolate milk is soda in drag. reporter: dietary experts like ann cooper say forget claims about vitamins and calcium. 70% of milk sold in most school cafeterias is flavored and loaded with sugar and fat. it s just like saying, listen, kids don t have enough fruit. they don t like apples, feed them apple pie. reporter: in an effort to reach a truce, some schools are turning to new versions of the old