I read a few clinical human studies on NMN, not sure what's on reddit. NMN is a form of Vitamin B, a derivative of B3. My experience was in line with the results seen in the clinical human studies. If someone has plenty of NAD in their system, additional supplementation does nothing-that was confirmed in human trials but maybe it does the reverse? I don't know about Reddit or even Facebook, but I do try to read clinical human studies. I'm certainly more concerned about Brinsupri which effects neutrophils. Neutrophils are scavengers for abnormal cells and they are immune cells, and on top of that, who did the research? We may not know for at least another 5 to 10 years or more if there are other more serious risks. I asked my NJH ID doctor if taking Brinsupri could affect my body's ability to keep the MABC at bay, which is what I've been doing since 2019, and her response was "we just don't know".