And if you are on a cholesterol lowering medication already,
it may have no effect at all.
It IS
in a lot of multi vitamins and
in food we eat, you are already getting some niacin. https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/niacin/art-20046208
Things to look out for when using are skin rashes, gi issues and possibly impact on developing type 2 diabetes. https://health.clevelandclinic.