http://curezone.org/forums/fm.asp?i=1955166#i
At no time did the tryptophan with the B6 ever work, even when I drastically increased the dosage. This absolutely proved that the B6 had destroyed the beneficial effect of the tryptophan by turning it into Niacin before it ever even got to the brain.
B6 hastens/does the conversion of tryptophan to niacin.