Hi.
Any positive experience in the treatment of anxiety wit L-lysine??
I think anxiety is my biggest problem actually and the reason of many of my symptoms. Recently I read about the possibilities of this compound. Best results seem to be in combination with L-arginine.
Here is the study (http://www.ncbi.nlm....pubmed/17510493):
Biomed Res. 2007 Apr;28(2):85-90.
Oral treatment with L-lysine and L-arginine reduces anxiety and basal cortisol levels in healthy humans.
Smriga M, Ando T, Akutsu M, Furukawa Y, Miwa K, Morinaga Y.
Source
Institute of Life Sciences, Ajimoto Co. Inc, 1-1 Suzuki-cho, 210-8681 Kawasaki-ku, Kawasaki-shi, Japan. miro_smriga@ehq.ajinomoto.com
Abstract
Dietary supplementation with an essential amino acid L-lysine has been shown to reduce chronic anxiety in humans with low dietary intake of L-lysine. A combination of L-lysine and L-arginine has been documented to normalize hormonal stress responses in humans with high trait anxiety. The present study was carried out in one hundred eight healthy Japanese adults. The aim of study was to find out whether a week-long oral treatment with L-lysine (2.64 g per day) and L-arginine (2.64 g per day) reduces trait and stress-induced state anxiety and basal levels of stress hormones. We confirmed that, without regard to gender, the amino acid treatment significantly reduced both trait anxiety and state anxiety induced by cognitive stress battery. In addition, we found that the treatment with L-lysine and L-arginine decreased the basal levels of salivary cortisol and chromogranin-A (a salivary marker of the sympatho-adrenal system) in male subjects. These results of this double-blind, placebo controlled and randomized study confirm the previous findings in humans and animals and point to a combination of L-lysine and L-arginine as a potentially useful dietary intervention in otherwise healthy humans with high subjective levels of mental stress and anxiety.
I´m really worried about the effects that this treatment could have in the growth hormone and it´s potential cancer risk. Some studies said that it does not increase growth hormone (see: http://www.ncbi.nlm..../pubmed/8315224) and in some forums it is said the opposite: "when combined with L-lysine , L-arginine´s effects on growth hormone levels are amplified" (see: http://www.thereales...s.com/hgh2.html).
Any opinion would be greatly appreciated. Thanks in advance.