A clinical trial of an NR and pterostilbene anti-aging supplement appeared to be safe over the short-term as it increased NAD levels in a sustained way. [This article first appeared on the website LongevityFacts.com. Author: Brady Hartman. ] A clinical trial of NR and pterostilbene sustainably increased NAD levels and appeared to be safe over the short-term. Moreover, the study suggests that it increased … Continue reading Researchers report promising pterostilbene and NR clinical trial results