iHerb Customer Reviews
I get better results with low doses of niacin (not niacinamide). NOTE: may not be suitable for hypothyroid conditions
17 people found the following review helpful
Posted by Health-Is-Wealth on Dec 21, 2013
I find I get better results taking small amounts of niacin instead (50mg or less), so will stick with that. I found 250mg of this to be way too much at once - took at night, had a fog-ache all the next day and was over-tired. Not the desired result at all. At this dose it depletes too many other things, necessitating their supplementation or increased doses to compensate - terrible if you've already had a difficult time trying to find a balance. Additionally, I've since read that niacin/niacinamide decreases thyroid hormone levels, which is true of my experience. In one small study - after a year of taking niacin, thyroid hormone levels had fallen significantly in each person. In another - thyroid hormone levels decreased in two people, and one of these two was diagnosed with hypothyroidism. Fortunately - when the niacin was discontinued for one month, thyroid hormone levels returned to normal. Please be careful. If this review was helpful to you, please click YES below - thank you. For reviews of all the products I have purchased from iHerb, please click my username above.
Help for Alzheimer's
16 people found the following review helpful
Posted by Reviewer1214284 on Jul 09, 2009
I read an article about curing Alzheimer's with niacinamide in mice (Second Opinion newsletter, February 2009) - decided to try it - the niacinamide has helped my Mother very much, she is calmer, more alert, speaks better, more like her old self, I highly recommend it. I plan to double her niacinamide dose.
It is straightening out my system
15 people found the following review helpful
Posted by Reviewer3026695 on Sep 07, 2009
six per day and it is already helping my joints, my clarity of mind, and a variety of other things that have been bothering me for the past decade.
Best B3, Quality and potent product
10 people found the following review helpful
Posted by Reviewer1565230 on Sep 06, 2011
After trying B3 from multiple manufacturers including Thorne, Twin Lab, Herbs of Gold (Aus), Ortho Molecular Products. This Jarrow one is the best and most effective. A high quality and potent amount of Niacinamide, gives noticeable cognitive improvement, especially assisting anxiety, and shyness, clarity of mind. 1g dosage is typically taken and the affect lasts all day. Thanks iHerb, please continue to stock Jarrow Niacinamine.
7 people found the following review helpful
Posted by Reviewer3234992 on Dec 30, 2008
This is NOT a time release capsule as another reviewer stated. I chose this product because it is pharmaceutical grade, easy to swallow, has good absorption, and does not bother my stomach.