Re: Niacin not to be taken if you have liver problems. It will cause severe pain, from your liver. On advice from doctor I took it, wish I hadn't. I had read earlier that liver doesn't filter the Niacin, and will cause pain. I had pain from liver area all they way down my leg. As I make most my meals, there is no chance of Niacin in my food.
Hugs
Gerri and Makaylah