Protein is an essential macronutrient and a key component of a healthy balanced diet, especially for those who exercise regularly. It is primarily responsible for building, repairing, and maintaining cells in the body. Protein is also an important structural component of muscle, bone, skin, blood, and other body tissues and organs.
When the body’s supply of other macronutrients (carbohydrates and fats) is insufficient, protein is used as a source of energy (or calories). Every gram of protein provides approximately 4 calories. Protein is not the body’s....
