Talking to a health friend on another group and she is a certified health consultant, she was extolling the benefits of Niacinimide and I told her I take 500mg most days and she said I could up dose to 2500mg daily. It's good for so much including arthritis, asthma, insomnia, depression, anxiety, diabetes and other issues mentioned in this link:
http://www.wisegeek.com/what-are-the...iacinamide.htm
Another friend was talking about a new supplement she is taking that has some tobacco process in it and she's taking it for brain health and she's feeling a lightness already.
Interesting and not harmful.