Cytosport Monster Milk is a powerful, yet easily digestible protein powder. Although it tastes like an ultra-rich milk shake, Monster Milk's advanced protein system makes it the ultimate nutritional tool for building muscle. Monster Milk delivers the biggest blast of fast and slow proteins. Rapid-releasing anabolic whey, glutamine peptides and free form BCAA's are complemented by slower, anti-catabolic caseins and other complete milk protein isolates. This powerful combination of fast and slow proteins creates an "anabolic window" that lasts for hours. Our strategic use of Aminogen helps smooth the digestion process. Also, being zero lactose will make the world of difference. Monster Milk helps create positive nitrogen balance, the gold standard of anabolic potential. By providing high levels of essential amino acids, Monster Milk stimulates protein synthesis and muscle growth.