32 Grams Protein Per Serving. 3 Grams Sugar Per Serving. Excellent Source of Calcium and Vitamins A, C & D. Tested For Banned Substances & NSF Certified for Sport. Muscle Milk is a lactose-free, protein-enhanced formula that promotes increased strength, lean muscle growth, and fast recovery from exercise. Designed after one of nature’s most balanced foods: human mother’s milk, Muscle Milk takes the guesswork out high performance nutrition by delivering a precise blend of ultra-premium proteins, complex carbohydrates, functional fats, vitamins & minerals. No matter what your goals may be - building lean body mass, toning your physique, or weight control, Muscle Milk delivers on both results and taste!