Rachel K. Johnson, PhD, MPH, RD, Dean and Professor of Nutrition at the College of Agriculture and Life Sciences at the University of Vermont and Min Qi Wang, PhD, Professor in the Department of Public and Community Health at the University of Maryland explain in their June 2002 paper "The Nutritional Consequences of Flavored-Milk Consumption By School-Aged Children and Adolescents in the United States," Journal of the American Dietetic Association, 2002:

“Children who consumed flavored milk had higher calcium intakes but similar percent energy from total fat and added sugars intake compared with children who were nonconsumers of milk. The observations that flavored milk did not increase added sugars intake was in all likelihood the result of lower intakes of soft drinks and fruit drinks by the children who consumed flavored milk…

Flavored milks can play a role in changing recent trends in children’s sugar-sweetened beverage consumption patterns that have a negative impact on their diet quality. Flavored milks offer a well-accepted, nutritious alternative in the wide array of beverages available to children in the United States.”

June 2002