There are three “macro” nutrients – Carbohydrate, Fat and Protein. We generally consume fats and carbs for energy to fuel our bodies. Protein is different. While it can be converted to fuel if needed, or if consumed in greater quantities than is required by the body, our protein consumption drives the processes that build lean mass and the creation of a host of protein dependent metabolic processes. So, how much protein do we need? Does it matter if it’s from animals or plants?