The study, published in the November issue of the Archives of Pediatrics and Adolescent Medicine, looked at students in 40 states.
Some had bans on soda or sweetened beverages, some didn't.
The study showed that in schools where ONLY soda was banned, kids switched to other sugar-sweetened drinks.
Banning sales of all sugar-sweetened beverages DID cut consumption in school. However, it didn't do much for overall consumption.
In those cases, kids were still drinking sweet drinks outside of school, either at home or from stores.