High Protein Gainer Powder Drink Mix. 32 g Lean Protein Per 4 Scoops. 650 Calories Per 4 Scoops. Lactose Free. Pre and Post Workout. Gain Size Safely. For hard gainers size and strength are easier lost than gained. Size and strength are lost when there is a catabolic gap and too few calories are consumed. This catabolic gap is the difference between the nutrition needed to gain and the calories actually consumed. Muscle Milk® Gainer helps provide the calories needed to close the gap so you can achieve and maintain the size you work so hard for. . Extended Protein Delivery. Big gains come from dedicated routine workouts coupled with efficient protein delivery for proper recovery. Muscle Milk Gainer's Protein System is designed to deliver protein over an extended period of time. The Protein System includes fast acting whey proteins (Whey Concentrate Hydrolysate and Isolate) and the slower acting casein proteins (Milk Protein Isolate Calcium Sodium Caseinate and Micellar Casein). Together this blend of premium proteins is formulated to provide hours of gaining potential. . Burn Carbs Utilize Protein. Carbs are burned for muscle energy so protein is "spared" for its primary job: muscle repair and growth. Additionally carbs help activate the powerful growth promoting hormone insulin that helps trigger transport of the amino acids (from digested protein) into muscle tissues. . Put in the hard work and Muscle Milk Gainer will help close the nutrition gap so even the hardest gainer can make progress.