What makes you think NMN has been "proven to be safe?" That's a pretty strong standard to conform to. There's virtually no clinical work that's been done at all

What makes you think NMN has been "proven to be safe?" That's a pretty strong standard to conform to. There's virtually no clinical work that's been done at all, for starters. A lot of genuine promising research in animals, but you also have this animal cancer model that suggests at least a little caution... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6448588/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6448588/