I have started taking 125mg x 4 sublingual nmn tablets 2 weeks ago and the reason for this first time post is to report two profound effects:
. Improved sleep, with vivid dreams almost every night
. Improved calm energy. No more after lunch crashes. Always ready to go to the gym.
This seems too good to be true and there is probably a good dose of placebo running here. That being said I have been experimenting with all kind of supplements over this oast years and this is the first time I feel something profound.
Today, while searching for nmn and vivid dreams, I stumble in another article published this September that again links nmn with nerve / neuron damage. "Pharmacological bypass of NAD+ salvage pathway protects neurons from chemotherapy-induced degeneration".
Not sure what to make of this.
I don't see a reason for worry. From the study, "Collectively, our data indicate that maintaining NAD+ is not sufficient to protect DRG neurons from vincristine-induced axon degeneration, and elevating NMN, by itself, is not sufficient to cause degeneration." Note we are not talking about normal, healthy people here, but rather, individuals with,"chemotherapy-induced peripheral neuropathy".
^https://www.ncbi.nlm...pubmed/30257945
------------------
Concerning my own personal NMN experience - over the last 90 or so days I've taken NMN, mostly sublingual. High daily intake has been ~1300 mgs, average 440 mgs, with random 2-3 days/wk breaks. Higher doses were taken within a 4 hour window before and during HIT (cycling) in the morning to early afternoon. On off training days, either no or low dosing (125 -250 mgs).
What did it get me? As one would expect, regular exercise improves performance. Still, I feel NMN deserves credit for some of my increasing cycling performance (significant speed, endurance, leg muscle development as recorded in my cycling app) over those weeks, along with a maintenance of overall body muscle tone and strength, seemingly without needing to do anything else out of the ordinary. In saying that, I'm comparing this summer's changes to past summers, and this year was significantly better. Further, having finished exercising, I'm generally ready to do something else, without resting much or at all. Years past, I would typically take a nap.
Other stats: My average monthly resting heart rate has stayed steady at ~52 bpm, Max steady-state working HR ~150-160 bpm (high for my age), and my HRV score has increased somewhat (a good thing) to an rMSSD of 58, which is not bad for my age. Resting BP has been consistent at 110-125/60-75.
After taking NMN for this long, a bigger problem is "What is normal?" in determining improvements/changes going forward. As winter is near, I'll be switching mostly to the gym, and will likely lower my daily NMN intake significantly, and reduce it to a maintenance dose, because I simply won't be out there cycling for a few hours a day. It will be interesting to see what happens, as I'm now in the habit of tracking my body stats daily.