Andrew Huberman· PhD
A peptide is a small Protein that's made up of little chains of amino acids now the moment people hear protein they usually think proteins that you eat or perhaps they think about four calories per gram of protein and that sort of thing keep in mind that we have lots of different kinds of proteins within our body that have nothing to do with the proteins that we eat now it is true that many of the amino acids that comprise peptides as well as other proteins in the body come from the foods that we eat because the amino acids again are the building blocks of peptides and other proteins the basic way that we Define a peptide is that it tends to be a small protein meaning chains of anywhere from 2 to 50 amino acids that's really the strict definition of a peptide however of often times peptides that are a little bit bigger so maybe 75 or 100 amino acids in length will also be considered a peptide