Whey protein contains all of the essential amino acids in the proportions that the body requires for good health. It also provides about 26g per 100g of protein of the branched-chain amino acids (BCAAs) leucine, isoleucine and valine. BCAAs are unique among amino acids in their ability to provide glucose and a readily available energy source during endurance exercise. In addition, preliminary studies show that a certain form of hydrolyzed whey protein may offer advantages in lowering high blood pressure. There are even some suggestions of protection against infections and viruses.
Emerging weight control research suggests that diets higher in protein may provide a key to building and maintaining lean muscle and burning fat. Researchers are evaluating the potential for whey protein, minerals and specific peptides to increase satiety, influence glucose homeostasis, and maintain lean body mass and enhance the lean body mass/body fat ratio. The future outcomes from this research may make whey protein the ingredient of choice for sports, nutritional and energy beverages.