A typical healthy diet does not contain significant sources of 5-hydroxytryptophan. Instead, it is manufactured by the body's biochemistry from that is found in most proteins. Hence it is available from read meats, cheese, poultry and seafood. Most is available Alpha Peak from beef and cheese and vegetarians and vegans rely on avocados, peanuts and cashews for their . Even so, these sources of trype do not lead to the production of large amounts of 5-HTP by the body and a supplement is indicated when natural levels have to be increased, not only in the case of vegans but for all of us.http://guidemesupplements.com/alpha-peak/