Lysine is an essential amino acid that cannot be synthesized by the body. In body building circles, lysine is the icing on the cake to be taken along with arginine and glutamine, in most amino acid stacks. The normal RDA is 1.5 gm daily, but if you want it to be effective in fuelling HGH, you need a lot more, preferably a few grams.
Lysine is responsible for maintaining important growth processes like bone and muscle growth. Lysine enhances the absorption of calcium and deficiencies in it can lead to poorly formed bones and limbs, and delayed or retarded growth. It is also important in genital development.
For older people, lysine may not be as effective as it would be in younger ones. According to this study, an oral arginine-lysine combination did not increase HGH or IGF-1 levels in men aged above 60. Although this isn’t very encouraging to hear, the researchers did go on to say that doses above 6 gm of arginine and lysine may work; however such high doses may also lead to diarrhea.
Younger people below 30 should have no problem utilizing lysine and arginine to their fullest potential. In a 1981 study (often quoted) by Dr Isidori, lysine and arginine provoked HGH release in 15 male volunteers aged between 15 and 20, and it was 10 times more effective than taking arginine alone.
Do note though, that arginine needs to be arginine pyroglutamate rather than L-arginine, IF you’re taking L-lysine. This is because arginine and lysine will compete with each other in binding to the same receptors. Take arginine, lysine, and glutamine in a 1:1:2 ratio; at least that’s how I take it. Also, the same rules apply – Always take amino acids on an empty stomach either before exercise, or before sleeping.
In order to get more lysine from natural foods, go for eggs, meat, dairy products, beans, and lentils. Just remember that amino acids work best in synergy with one another, and the same rules apply for lysine as well.
