Hi lisa ,
Trytophan ( essensial amino acid ) was taken in the 80's , for its componant part of serotonin production , as a sleep aid .
It can cross the blood brain barrier were as serotonin can not .
It is naturally produced in the entrocromaffin cells in the gut .
Direct supplemtation is not advised :- because a large tryptophan-related outbreak of eosinophilia-myalgia syndrome (EMS) in 1989 caused 1,500 cases of permanent disability and at least thirty-seven deaths. from anaphylaxis .
It was not clear wether it was due to a contamination . Though the studies concluding this were questioned for throughness and transparancy .
or its role in histamine metabolism . As large doses of tryophan produce metabolites which interferes with histamine degeneration , which could logically led to normal subjects having anaphylaxis .
At the time the FDA banned it but it is now available again . They will non confirm wether it is dangerous or not . As a result a safe supplemention level has not been established .
Anything that reduces histamine degeneration should logically be avoided in any case in masto / mcas .
I am interested in serotonin metabolism and action . A brief read shows its complex . so a challenge for me xxxxxxxxxxxxxx So I am going to read up
Ill let you know what I find xxxxx
Josie