Proteins exist in every one of your cells, and apart from water, protein probably makes up as much of your body as anything else. Among the vital roles they play, proteins act as building blocks for structures such as hair, skin, and other organs like the liver, and the proteins that you eat provide the raw materials for the proteins in your body. In a couple of previous blogs ( 1 , 2 ), I discussed the subject of dietary protein and aging. Today, however, we turn our attention to dietary protein and muscle mass. Whether you want to look great at the beach, perform better at sports, or ward off disease, it’s important to optimize your protein intake. This brings us to the latest episode of humanOS Radio. Guest In this episode of humanOS Radio I speak with Professor Stu Phillips from McMaster University. Professor Phillips is Director of both the Physical Activity Centre of Excellence as well as the McMaster Centre for Nutrition, Exercise, and Health Research. His research focuse