Protein is a macronutrient (nutrients we need in large quantities) that is chemically composed of amino acids. These amino acids are the essential building blocks of our structure, including muscle, immune cells, hormones and hair.
There are 20 amino acids we need, and 9 of them are considered essential – can’t be made by the body and hence must be consumed in our diet. Once consumed, the amino acids we have ingested are broken down by the body and reassembled to create the amino acid needed.