Chocolate Milk Nutrition Comparison supporting healthier choices for students. School Chocolate Milk 8oz serving: 130 calories, 23g carbs, 9g fat, 10g added sugar, 125mg sodium, 8g protein. Grocery store chocolate milk 8oz serving, 26g carbs, 200 calories, 24g added sugar, 8g fat, 8g protein, 210mg sodium. Why it matters in schools school chocolate milk is designed to have less sugar while still providing important vitamins, calcium, and protein for growing kids. Supporting healthier options helps promote better overall nutrition while reducing added sugar. This institution is an equal opportunity provider.