Thanks for your input GlenP and Mr. Kite. I would rather know about the negatives too than go in thinking there weren't many.
I am very allergic to niacin, so I wonder if that would be a problem with NADH. I did remember reading that it was a B3 link but am just now realizing if I was allergic to the niacin supplementation than I could also have an adverse reaction to NADH. Hmm? What to do? Anyone have a coin to flip? 
Thanks for the info, Oerganix!
oerganix
NADH, a type of B Vitamin, a coenzyme that the original study said some bodies don't create out of the B3/Niacin in their diet or supplements. It is important in the production of ATP, cell energy, from glucose in the liver.
According to Wikipedia a Niacin deficiency can lead to:"Common psychiatric symptoms of niacin deficiency include irritability, poor concentration, anxiety, fatigue, restlessness, apathy, and depression. Mild niacin deficiency has been shown to slow metabolism, leading to cold intolerance."
NADH, a type of B Vitamin, a coenzyme that the original study said some bodies don't create out of the B3/Niacin in their diet or supplements. It is important in the production of ATP, cell energy, from glucose in the liver.
According to Wikipedia a Niacin deficiency can lead to:"Common psychiatric symptoms of niacin deficiency include irritability, poor concentration, anxiety, fatigue, restlessness, apathy, and depression. Mild niacin deficiency has been shown to slow metabolism, leading to cold intolerance."
Thanks for the info, Oerganix!