Posted Today, 06:12 PM
Here is something to think about. Dr. Peter Attia just had a podcast with Dr. Sinclair and he argues that NR and all NAD precussors raise the NAD levels, but the NAD never gets out of the liver into the mitochondria. Feels it is a waste of money and time to take precussors unless you take it IV.
https://www.scienced...01967?via=ihub=
Im not off NR until more data is available. Maybe IV.
Edited by PAMPAGUY, Today, 06:24 PM.
That podcast was with his partner. The podcast with Sinclair isn't out yet.
The study he referenced used 50 mg/kg in mice and seems to show no NR or NMN escape the liver. So Attia says IV maybe the only way to bypass the liver.
But he is ignoring or not aware that Sublingual NR/NMN does much the same thing as IV in bypassing the liver.
Also, we don't know if larger dosages might allow some NR/NMN to overwhelm the liver and make it through.
Also, we don't know if there is benefit from CD38 being used in the liver to break the NAD+ back down to NAM. Is MORE CD38 created in response to the increased NR/NMN/NAD+, or, is existing CD38 used in the liver, sparing NAD+ levels elsewhere in the body.
Also, he is repeating some outdated or bad info. NAD+ DOES enter into some cells at least, and the NAD+ IV clinics are not the quackery that Brenner/Chromadex claim.
Attia is brilliant. I learn so much from him. But think he hasn't exactly taken a deep dive on NAD+ yet.
Edited by able, 31 October 2018 - 06:20 PM.