TGA scheduling decisions
But NAD+ metabolism is a complex process, and while you can ramp up NAD+ production with a lone precursor, fueling other aspects of the production process can make your NAD+ increases more efficient and sustainable.2 NMN and NR both effectively raise NAD+ levels, but each one has exhibited some other effects in human studies that haven't been replicated in studies of the other
Inflammopharmacology 25 (4), 439449
I recommend: at least 2,000 mcg (g) cyanocobalamin once each week, ideally as a chewable, sublingual, or liquid supplement taken on an empty stomach or at least 50 mcg daily of supplemental cyanocobalamin or a serving of B12-fortified foods three times a day, each containing at least 190 percent of the Daily Value listed on the nutrition facts label Those over 65 years of age should take at least 1,000 mcg (g) cyanocobalamin every day
Andrs E, Zulfiqar AA, Vogel T QJM : monthly journal of the Association of Physicians 2020