@jepps thanks for posting that study, but
who takes 30 GRAMS of glutamine daily???? I don't think that study is useful
Do you think you might have ingested too little tryptophan and run into low serotonin because of that?
I suppose that is possible, but my best educated guess is that it lowered my catecholamines too much, in particular dopamine which I believe is more of my issue.
"Branched-chain amino acids (BCAAs) influence brain function by modifying large, neutral amino acid (LNAA) transport at the blood–brain barrier. Transport is shared by several LNAAs, notably the BCAAs and the aromatic amino acids (ArAAs), and is competitive. Consequently, when plasma BCAA concentrations rise, which can occur in response to food ingestion or BCAA administration, or with the onset of certain metabolic diseases (e.g., uncontrolled diabetes), brain BCAA concentrations rise, and ArAA concentrations decline. Such effects occur acutely and chronically. Such reductions in brain ArAA concentrations have functional consequences: biochemically, they reduce the synthesis and the release of neurotransmitters derived from ArAAs, notably serotonin (from tryptophan)
and catecholamines (from tyrosine and phenylalanine). ....................."
http://jn.nutrition.org/content/135/6/1539S.full
So one might think that it would be good to add in some tyrosine or phenylalanine, but I have been down that road before. Possitive effects of those wear off after awhile. So I figured why bother, and it was just best for me to ditch the BCAA's.
Edit: I am not the only one who feels worse on BCAA's. I've read some body building site threads, where some others get the same effect. Others feel better. It's like anything else you take. What might be good for one, may not be good for another.