Peter Attia· MD
an amino acid has a carboxy end uh connected with a carbon and then it has a nitrogen end and when the body is making so when we eat protein we get these amino acids and in some sort of a string but we totally digest them down to probably individual amino acids maybe D or tripeptides and we absorb them that way they get to the blood uh as single amino acids for the most part and then the body begins to reconnect them based like on the messenger rnas our DNA tells us how to reconnect them so we connect that carbon to a nitrogen and we string them together of these 20 amino acids though they all have that car that Aid and nitrogen part but they also have a side chain ranging from very simple one like glycine with just a hydrogen to ones like tryptophane that have a big aromatic part to them