Both NMN and NR and even NAM show a boost in NAD until the body likely reaches homeostasis, which could take weeks.
Sinclair seems to think this essential molecule has a large effect on why we age because of its possible effects on blood flow among other things. See the latest video of his talk posted elsewhere in this forum. It's a highly informative video for sure.
I personally think that for now, cycling it in and out on a monthly basis is probably your best bet for optimizing the benefits of taking it. It's certainly not so good as just solving the problem of why it drops in the first place but it'll do until we have other options. I just bought more NR recently and will be cycling it (with chamomile or apigenin) in and out with sulforaphane, partly to save costs but also to improve its performance.
As far as NR vs NMN, I think it all comes down to your biology. I personally notice positive benefits from NR but it could be NMN would not affect me well, I don't know, I'm waiting for better sources and cheaper prices to find out. It could be that the people who have reported ill effects from NR benefit greatly from NMN. Maybe there is some mechanism behind their specific differences in biology. We'll know one day in the future perhaps.
A recent Rhonda Patrick video discusses cycling on a deeper level than this and I think it's one of those things that rings true for a whole lot of stuff, from exercise, to fasting, to supplements, even to learning, work and hobbies. Life operates in cycles, rhythm is important not just in music, but in sleep, sex and other functions. We live in an era of abundance where it's possible to just do one thing for way too long, and we end up in dysfunction because of it. Cycles are the way to go man. Our bodies constantly try to achieve some sort of homeostasis, and the stresses we throw at it, depending on how often, can hurt us, or it can help us in a hormetic sort of way. I take modafinil, but I don't take it every day, I take it every 4 days. Why? Because my body will develop a tolerance otherwise.
And again, also, it saves money.
Edited by Nate-2004, 15 August 2018 - 05:48 PM.