Posted by optimistic on March 11, 2002, at 15:15:06
In reply to Re: L-Tyrosine, posted by JohnX2 on March 11, 2002, at 13:40:41
> > 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.
>
> -JohnThanks for your response John...too bad..I guess it was too good to be true.
poster:optimistic
thread:97459
URL: http://www.dr-bob.org/babble/20020307/msgs/97479.html