Protein is one of the indispensable elements of a healthy diet because it boosts energy levels, prevents diseases, builds muscle mass, and promotes healthy weight loss. Some medical conditions and diseases may further require the consumption of a liquid protein supplement. To illustrate, the usage of dietary supplements for vitamins, minerals and protein may be recommended for people who have had gastric bypass surgery. This is important for their health because the decreased size of their stomachs limits the amount of nutrients that are absorbed by the body.

Efforts to expand the limits of human strength and endurance have kept the scientist and the athlete occupied for centuries. The quest for another pound of muscle, or to lift the next couple of kilos has been relentlessly pursued in the gym and the laboratory alike. As the questions and conquests became more challenging, the answers have become more elusive and complicated. Few concepts and conclusions have withstood the test of time in exercise physiology. Even as we tackle the metabolic and genetic basis of skeletal muscle response to strength training, there are only some things that we know for sure.