Another list has carried the following information:
"A Dutch study published in the November, 2002 issue of
Brain, Behavior and Immunity (the official journal of the
PsychoNeuroImmunology Research Society), found that
tryptophan worked directly on the brain to alter cognitive
functioning and produce mood swings and depression in
human subjects. ... turkey protein contains an excess of this amino
acid."
So do certain cheeses, such as parmesan and mozzarella, according to the same post.
Anyone in a position to comment on this Dutch study?
Evelyn