Schools across the nation are removing chocolate milk from their meal programs to reduce students' intake of added sugar.
Some people are concerned the new policy will lead to a decrease in students' milk consumption and, specifically, reduce the essential nutrients that milk provides, such as calcium, protein and vitamin D. They also fear the policy could lead to an increase in milk waste. However, results from a study conducted by UC Nutrition Policy Institute may alleviate these concerns.
While the study found that the number of students who selected milk during lunch dropped by about 14% in the year the chocolate milk was removed, there was a no significant difference in the proportion of milk wasted before and after policy implementation. Milk consumption declined by about 1 ounce per student post policy implementation, resulting in a small but statistically insignificant decrease in the average amount of calcium, protein, or vitamin D consumed from milk.
The chocolate milk removal policy did result in a significant reduction in added sugar consumption from milk, by an average of 3.1 grams per student. These results suggest that a school meal chocolate milk removal policy may reduce middle and high school students' added sugar intake without compromising intake of essential nutrients nor increasing milk waste.
The study was conducted by NPI affiliated researchers Hannah Thompson and Esther Park from the UC Berkeley School of Public Health in collaboration with NPI researchers Lorrene Ritchie and Wendi Gosliner, and Kristine Madsen from the Berkeley Food Institute and UC Berkeley School of Public Health. The study was published online on August 27, 2020 in the journal Preventing Chronic Disease. The full study is available online.