Phenylalanine is an essential amino acid that carries out many important functions in the human body. The two types of phenylalanine are L-form and D-form. This article describes what phenylalanine is ...

Amino acids are the building blocks of protein. These molecules come together to form proteins. Your body uses them for many important functions, such as making hormones, building muscle, and ...

Protein is an important food group to include in your diet. Your body needs protein to build bones, muscles, cartilage, and skin. It also needs protein to repair cells and tissues, make and regulate ...