I have been meaning to post this question for a long time.....say a year and a half! What is trprophan? I can't find any information on it. Is this a typo? Is it meant to say trptophan?
It is mentioned in the section about porphyria and diet:
"3. Avoid Red Meats Red meats, including beef and dark turkey as well as tuna and salmon contain tryprophan and should be avoided as much as possible."