Bests & Worsts Reviews from Amazon

I am a family practice physician and thought this might deliver on the promise. I rarely have adverse reactions to medications or supplements. However, this product gave me several days of nearly passing out from orthostatic hypotension. I initially did not recognize that this was due to Tru Niagen because there was no flushing and I took it for a week before the symptoms presented. I can’t continue to take the product. Be careful and coordinate with your doctor. It had no effect on my sleep or energy level or pain.