Proteins crucial role in the body includes building, maintaining and repairing body tissue. Complete proteins are found in animal products such as meat, eggs and milk. Proteins that contain all 20 amino acids are called complete proteins. There are 20 different amino acids, 9 of which are considered essential because our bodies cannot produce them naturally, and therefore they must be obtained through the diet. They are linked together in complex formations.
Amino acids are the building blocks of protein. Protein should consist of about 10 to 35 percent of your diet. All three macronutrients are needed in the diet, as each perform vital functions in the body. However, these are needed in much smaller quantities, and thus are referred to as micronutrients. Our bodies require others nutrients as well, such as vitamins and minerals. Macronutrients are the main components of our diet. The three macronutrients of protein, fat, and carbohydrates all perform essential roles in the human body.