Amino acids are small chemical compounds that join together to form proteins, which are essential for the structure and function of the body. Amino acids are used to build and repair tissues, including muscles, skin, and organs. They also help make enzymes, hormones, and other important molecules.
There are 20 different amino acids, and nine of them are called essential amino acids because the body cannot make them and they must come from food. Foods like meat, eggs, dairy, and plant sources including beans, lentils, nuts, seeds, tofu, and whole grains, provide these essential amino acids. When using plant sources, some of these foods must be combined to complete the set.
Getting enough amino acids through a balanced diet is important for growth, healing, and overall health.