Protein is a word that carries a lot of weight. Packaged foods brag of their high-protein content; a whole aisle of the grocery store is filled with bars and powders that claim to be pumped full of it. We’re told that we need to eat it — that protein is good for us and we need a lot of it — but what exactly is it? Why do we need it? Do we need as much as everyone is telling us we do?
Welcome to Nutrition 101, a new series where we step away from the health fads cluttering our news feeds, and get back to nutritional basics — starting with that most glamorous and high-profile of nutrients: protein.