Leading health and nutrition organizations – like the American Academy of Family Physicians, American Academy of Pediatrics, American Heart Association, National Hispanic Medical Association, National Medical Association, and School Nutrition Association – recognize the valuable role that milk, including flavored milk, can play in meeting daily nutrient needs. All agree that the small amount of added sugar in flavored milk is an acceptable trade-off for the nutrients provided. In addition, studies show that children who drink flavored milk have better quality diets, do not have higher intakes of sugar, fat or calories, and are not heavier than non-milk drinkers. source: raiseyourhandformilk.com
Here is a pdf file outlining the top 5 reasons to Raise Your Hand for Milk.