The popularity of whey protein among athletes and the bodybuilding community has grown significantly. Whey is a by-product of the dairy industry's process for manufacturing cheese. It constitutes only 20% of milk. It contains minerals, water, lactose, protein, and fat. Whey protein is a potent source of many benefits. Its antibacterial, antitoxin, and immunomodulating properties aid in the treatment of many ailments. It also plays an important role in the healing of burns and wounds. It has antioxidant qualities that aid in the battle against HIV. Whey protein promotes muscle growth and strong bones, in addition to improved athletic performance in athletes and bodybuilders. It aids in preventing cancer, cardiovascular diseases, obesity, and type 2 diabetes. Whey protein is a necessary supplement for those who engage in physical activity, like sports and exercise. It also benefits sedentary adults, newborns, expectant moms, and elderly people. However, in spite of its numerous benefits, there are many myths that surround whey proteins and therefore, are considered only for athletes and gym-goers. The present review attempts to cover an overview of whey protein, its components, types, and benefits. It also aims to dispel different fallacies about whey protein by presenting evidence from scientific studies.

Keywords : Whey, protein, athletes, muscle, weight.