What you need to know about this essential macronutrient and how it works. Reviewed by Dietitian Kelli McGrane, M.S., RD Proteins are made up of amino acids and are found in every cell of the body.
Whether it’s at the gym, in a doctor's or dietitian's office or simply while shopping at the grocery store, it’s hard to miss the constant reminders to eat more protein. After all, protein-boosted ...