[my_pointy_head_is_sharp]

Just read that Anyone taking more than 1000 mg. (1 gram) of niacin or inositol hexanicotinate per day should have their liver enzymes checked regularly.

Other side-effects here and here.

[DannyTN]

Thanks pointy_head

Anyone taking supplements should always read up on the side effects.

Atkins did make a comment about some of the side effects of niacin could be avoided by taking the other B vitamins with it. That they work best as a group instead of an individual treatment.