"Specific amino acids, such as arginine, lysine and ornithine, can stimulate growth hormone (GH) release when infused intravenously or administered orally."
Chromiak JA, Antonio J.
Nutrition. 2002 Jul-Aug;18(7-8):683-4
"Exercise is a potent physiological stimulus for growth hormone (GH) secretion, and both aerobic and
resistance exercise result in significant, acute increases in GH secretion."
Wideman L, Weltman JY, Hartman ML, Veldhuis JD, Weltman A.
Department of Exercise and Sport Science, University of North Carolina-Greensboro, Greensboro, North Carolina
"data also support previous findings indicating that Abdominal Visceral Fat is a primary determinant of GH release"
Impact of abdominal visceral fat, growth hormone, fitness, and insulin on lipids and lipoproteins in older adults.
Weltman A, Despres JP, Clasey JL, Weltman JY, Wideman L, Kanaley J, Patrie J,
Bergeron J, Thorner MO, Bouchard C, Hartman ML.
Science is still has not determined conclusively how helpful GH is to an athlete. Look at how long it took them to catch on that weight training can HELP
athletic performance. All you can do is be careful what you buy, or buy into.