Posted by turalizz on September 16, 2002, at 15:11:41
In reply to L-Tyrosine or L-Phenylalanine, posted by optimistic on September 16, 2002, at 13:06:11
> I want to try a natural way of helping with ADD and depression. The chemical pathway in the production of dopamine and norepin. starts with
> L-Phenylalanine that is turned into L-Tyrosine etc. Is it better to take L-Phenyl. or L-Tyr. as a supplement and why? Thanks for any and all input.I'd say, l-phenylalanine. PA is precursor to tyrosine, but also it is the precursor to phenylethylamine, which is a cathecolaminergic activity enhancer, and also a mood brightener.
Tyrosine hydroxylase is the critical enzyme that plays role in the rate limiting step (conversion of tyrosine to dopa)in dopamine synthesis. So takinp PA or TYR wouldn't really increase dopamine synthesis; you soud take l-dopa. (Which would lead to unwanted side effects)
NADH is said to have some dopaminergic effect, even some benefits for Parkinson's patients.
So, I'd try l-PA and NADH if I were you.
(If you do not insist on a natural way, I'd also suggest 2.5 - 10mg selegiline, which definitely increases dopamine via MAO-B inhibition.)
good luck,
cem
poster:turalizz
thread:120022
URL: http://www.dr-bob.org/babble/20020914/msgs/120033.html