Update @ the end of 2025
I've been taking NMN now for the last 6.3 years since September 2019. I've experienced no negative effects, and only have felt more energy. Whether this is placebo or not - it doesn't matter as long as I experience the additional energy. In the last 3 years I was able to get my black belt in Taekwondo, and have ran half marathons in 39 of the 50 states. One additional thing I have been doing on and off through the year is getting exposure to long length wave light. Mostly through my running and walking in the morning hours - but more recently through a red light therapy booth at my local gym. I'm hopeful that there will be a positive outcome from this.