Posted by Beren One Hand on January 13, 2004, at 18:19:24
In reply to Re: 2nd dose 5HTP - advice pleeeease, posted by john1022 on January 13, 2004, at 17:50:54
Thanks for pointing that out John. When I did my initial research, I generally read that Theanine "regulated" dopamine and serotonin levels. I just assumed since dopamine and serotonin makes you feel good, that "regulate" means "increase."
So maybe the weird tingling feeling I'm getting is the Theanine shutting down my serotonin levels?
Here's a abstract I found on the web:
"The effect of theanine on serotonin metabolism is more ambiguous, however. One study indicated that theanine had no effect on serotonin levels 25, whereas two other studies showed that theanine decreased brain serotonin 8, 27. A fourth study (by the same author as the previous two) reported that theanine increased serotonin levels in some regions of the brain 10. In view of this uncertainty, anyone being treated with a serotonin reuptake inhibitor for depression should consult with a health care professional before taking theanine. Normal individuals — i.e., people without serotonin deficiency or serotonin-dependent depression — who are concerned that theanine could possibly decrease their brain serotonin levels may want to consider supplementing concurrently with St. John’s wort. Note that taking 5-HTP (5-hydroxytryptophan, a serotonin precursor) along with theanine may not be especially useful; theanine has been reported to inhibit the formation of serotonin from tryptophan 27 and the same could be true for 5-HTP."
poster:Beren One Hand
thread:300271
URL: http://www.dr-bob.org/babble/alter/20040110/msgs/300353.html