A new study suggested that taking nicotinamide riboside (NR): https://en.wikipedia.org/wiki/Nicotinamide_riboside a form of the vitamin b3, might increase your risk of developing aggressive forms of BRAIN cancer https://www.dailymail.co.uk/wellness-us/nutrition/article-13252669/experts-warn-against-supplements-brain-cancer.html The common supplements experts say you should avoid. While previous studies have linked commercial dietary supplements like nicotinamide riboside (NR), a form of vitamin B3, to benefits related to cardiovascular, metabolic and neurological health, new research from the University of Missouri has found NR could actually increase the risk of serious disease, including developing cancer https://neurosciencenews.com/cancer-dietary-supplements-21823/