The New York City Department of Education is considering banning chocolate milk in its schools in an effort to combat obesity.
Chocolate milk can have about double the sugar of regular milk, almost 3 teaspoons to be exact.
Experts recommend children have less than 6 teaspoons of sugar per day.
Cornell looked at the effects of banning chocolate milk from school cafeterias in 2014. They found that students on average consumed less sugar and fewer calories but they also consumed less protein and calcium.
Other cities that have concerned a ban include Washington, D.C., San Francisco, and Minnesota.
Los Angeles and Detroit initially banned flavored milk but reversed their decision.