Why are sports drinks and light juices permitted in high schools under these Guidelines?

By the time students reach high school, they are more apt to be making many of their own food and beverage choices. Sports drinks and light juices provide hydration at relatively low caloric density. These beverages are available only in high schools and are limited to 12 oz portions with no more than 100 calories – an amount which can fit into an overall healthy diet for most high school students. Moreover, this serving size is consistent with all other caloric beverages permitted in high schools.