OK for Arginine pyroglutamate
but about Lysine and Glutamine ?
"Even after the Journal of Gerontology report (a) stated that "Oral arginine-lysine does not increase growth hormone or insulin-like growth factor-1," lysine advocates kept promoting its use as a valid GH releaser. Additionally, lysine has the highly undesirable side-effect of insulin release (b), and should be considered an unacceptable co-factor in any arginine formula. "
Corpas E, Blackman MR, Robertson D, Harman SM. J Gerontol. 1993;48:M128-M133
Sener A, Blachier F, Rasschaert J, Mourtada A, Malaisse-Lagae F, Malaisse WJ. Stimulus-secretion coupling of arginine-induced insulin release: comparison with lysine-induced insulin secretion. Endocrinology 1989; 124:2558-2567