Starting a new thread on Na-R-Alpha Lipoic Acid because the NR curated thread is veering off topic. Here are the most recent posts:
You really should forget about it... ALA is produced naturally by the body as a strong master antioxidant. However, If you supplement yourself with it you will actually decrease your own production so go to the opposite effect. In mice the supplementation decrease lifespan significantly : http://www.ncbi.nlm....pubmed/22785389
There is also others studies I read in the past that show its negative part..
regular ALA contains 50/50 R-ALA and S-ALA, when ALA is synthesized you'll get 50/50 mix, most of the seller can't be bothered to set them apart as it isn't cost effective. And S-ALA is literally poison.
At high concentrations, S-Lipoic acid inhibits mitochondria metabolism and the antioxidant activity of R-lipoic acid.
S-Lipoic acid is metabolized in the outer cell membrane. This may interfere with R-Lipoic acid's ability to penetrate the inner mitochondrial membrane and energy production
R-Lipoic acid is the only form of lipoic acid that is proven to significantly increase your cellular and mitochondrial antioxidant activity for preventing mitochondrial decay. This effectively attenuates the reported increase in oxidative stress with aging.R-Lipoic acid is the only form of Lipoic acid that is proven to expand total life span.
Our bodies don't produce enough of this, especially at later stages of our lifes, if as they say R-ALA is capable of increasing SIRT1 by 6 times fold, it'll be interesting some NAD+ boosting working along side
This part of the discussion is getting off topic from NR, and should probably split off into its own thread from here even though the conversation is about taking it in conjunction with NR to boost NAD or sirtuin activity further.
This article has a ton of references cited and explains a lot of what Black Fox is talking about above but it still does not mention anything about what Tom said regarding the decreasing of one's own production due to supplementation. This was a concern that Aubrey de Grey mentions in his book regarding endogenic antioxidants. It was Tom's comment that stopped me from buying the supplement a few days ago. Tom's comment on this however has no references so I'm not sure where he or de Grey got the info from specifically, nor do I know if it's *all* endogenic antioxidants or just some.
I used in the past the sodium salt of pure r lipoic acid: Na-R-Ala and my feeling was bad. After that I came across many studies that show both lifespan decrease and studies that show that we just cant compete our own endogene antioxidant. Thats also why I also stay far from Co10, and for this one also we have study that show it induces stroke in mice. So for now, my strategy is to use things that can help to increase our own production. NR, Pterostilbene, honokiol etc are all a much better strategy in my opinion
Tom I recall reading this about endogenous antioxidants in the book "Ending Aging" but I literally searched the entire PDF for the words "endogenous" and "exogenous" and it turned up nothing, the word "antioxidant" gave me several results but nothing I heard from the audio. I'm at a loss as to this vague memory and finding the source by searching "endogenous antioxidants" on scholar or Google has turned up nothing but this thread which also has no references to the original poster's assumption. Perhaps I'm searching the wrong key terms. The studies mentioned in the article I posted above indicate that rats live longer, but when I looked at the study referenced I don't see where or how he drew that conclusion, plus I can't see the whole thing because publishers like to make people pay for thousands of various journal subscriptions just to read any reference made anywhere.
Edited by Nate-2004, 11 June 2016 - 07:25 PM.