Posted by JohnX2 on March 11, 2002, at 13:40:41
In reply to L-Tyrosine, posted by Optimistic on March 11, 2002, at 12:23:30
> Is anybody familiar with the effects of taking the amino acid L-tyrosine. I read that it is a precursor to the manufacturing of dopamine and norepinephrine and therefore should be a natural alternative for helping with ADD,depression, lethargy etc.
> All input and experiences, including dosages, success or failure, would be greatly appreciated.This is my opinion, for what it is worth.
I don't feel l-tyrosine is generally effective for anything because
the diet generally supplies an ample amount of the chemical phenylalanine
(the precursor to l-tyrosine). L-tyrosine already saturates another rate limiting
enzyme in the neuron called "tyrosine hydroxylase" that is involved in coverting
tyrosine to l-dopa.....l-dopa is subsequently converted to dopamine and norepinephrine.Yes, I tried l-tyrosine for depression/lethargy with little success. I looked into some neurlogical
background and most studies remarked the above conclusion.-John
poster:JohnX2
thread:97459
URL: http://www.dr-bob.org/babble/20020307/msgs/97464.html