Whey

Whey protein is a supplement that people use alongside resistance exercise to help boost muscle protein synthesis and the growth of lean muscle mass. Other possible benefits include helping with weight loss and lowering cholesterol.

Milk is made of two proteins, casein and whey. Whey protein can be separated from the casein in milk or formed as a by-product of cheese making. Whey protein is considered a complete protein as it contains all 9 essential amino acids. It is low in lactose content.