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Should You Be Taking Niacin?

Updated on July 5, 2010

An overview of niacin diet supplements

Several months ago, my doctor suggested I start taking niacin. My LDL cholesterol – the “bad” cholesterol – was fine, but my HDL cholesterol, the “good” cholesterol, was too low. I discovered that it’s a lot easier to lower your bad cholesterol than it is to raise your good cholesterol. Exercise is one way to do it, so I began doing daily exercises in my hot tub, and when it got warm enough, I started swimming every day. My HDL cholesterol went up a couple of points, but it needed a bigger boost, so I started taking niacin with my other dietary supplements.

What is niacin?

Niacin is one of the B vitamins – more specifically, it’s known as vitamin B3 or nicotinic acid. It’s one of the essential nutrients that humans need for good health. Because it’s water soluble, niacin cannot be stored in the body, so it must be replenished often.

How is niacin beneficial?

Niacin is an important part of metabolism. It helps convert carbohydrates in the diet to energy that the body can utilize. It also helps with the conversion of fats and proteins, although to a lesser extent. Niacin is also necessary for a healthy digestive system, circulatory system, and nervous system, along with healthy hair, eyes, and nails.

Niacin packs a triple punch for your cardiovascular system. Niacin has the ability to raise the level of HDL cholesterol by more than 30%. This is the good cholesterol that cleans the bloodstream of bad cholesterol. While raising your HDL cholesterol, niacin can also lower your LDL cholesterol by as much as 20%. Niacin can also have a beneficial effect on triglycerides – it lowers these dangerous lipids in the body by as much as 25%.

Niacin has also been shown to lessen the symptoms of osteoarthritis by decreasing joint pain and stiffness and increasing mobility.

New studies suggest that niacin dietary supplements might help reduce the effects of aging on the skin, but further research is needed to confirm the initial findings.

More and more people are undergoing detoxification, and many include niacin as part of their detox supplements. Detox supplements are vitamins that have the ability to help rid the body of potentially dangerous or unhealthy substances that can build up in our bodies. Many people believe that niacin detox supplements help break down fats so that they can be flushed from the cells.

Niacin and diabetes

Niacin has a mixed effect on type 2 diabetes. Most diabetics have high levels of triglycerides and LDL cholesterol, and niacin can help reduce these. On the other hand, niacin can raise blood sugar levels, which could be dangerous for those with diabetes. If you have diabetes, don’t take niacin supplements before talking about it with your physician. Only he can determine if niacin would be beneficial to you.

Side effects of niacin

Some people experience side effects from taking niacin. The most common is “flushing.” Flushing might include a sudden warm feeling, redness, or tingling on or under your skin. This is harmless and often goes away once your body adjusts to the extra niacin it’s getting.

Niacin might also make you feel “lightheaded” when you first start taking it, especially if you stand up too quickly from a sitting position. Headaches from taking niacin supplements have also been reported.

Who shouldn’t take niacin?

Niacin isn’t for everyone. Some people are allergic to nicotinic acid, so of course, these people shouldn’t take niacin supplements. Also, those with severe liver disease or stomach ulcers, along with any other type of bleeding, should not take niacin.

Niacin is considered a Category C for pregnant women. So if you’re pregnant or breastfeeding, be sure to talk to your doctor before taking niacin supplements.

Niacin should not be taken with certain prescription medications. Check with your doctor to find out how niacin might affect any drugs you’re taking. Some of these include tetracycline, alpha-blockers for hypertension, anticoagulants, Isoniazid for tuberculosis, and drugs used in the treatment of diabetes.

How much niacin do I need?

The general daily recommendation for adults is 16mg for men and 14mg for women. Remember, this is per day. Since niacin is a water-soluble vitamin, it’s not stored in the body. It’s eliminated via the kidneys. If you have unhealthy levels of HDL cholesterol or triglycerides, your doctor might recommend higher dosages of daily niacin.

Niacin is found naturally in lean meats, poultry, fish, nuts, dairy products, and eggs. Smaller amounts are found in cereals, breads, and legumes.

Regardless of your present health, you should always consult your doctor before taking any dietary supplements.

Where to buy supplements

You can find supplements in drug stores, health stores, and in many grocery stores. For the largest selection and the best prices, buy supplements online.

Niacin is inexpensive and readily available.
Niacin is inexpensive and readily available.


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    • Teresa Coppens profile image

      Teresa Coppens 

      9 years ago from Ontario, Canada

      I've been experiencing some of the issues mentioned in your article and have been considering adding it to my diet. Timely find for me!

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      Niacin has helped with my good cholesterol, Nancy!

    • nancy_30 profile image


      10 years ago from Georgia

      Thank you for this very useful information. I will have to check it out and also tell my mom about it.

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      Reporter, thanks for the added info!

    • diabetesreporter profile image


      10 years ago from Eureka, California

      To the person who stopped taking it after they developed a rash, this is a really common reaction and nothing to worry about. You should either start out at a lower dosage, make sure NOT to take it on an empty stomach or switch to one of the more expensive "no flush" brands.

      My own Doctor prescribed me an OTC brand called Slo-Niacin. It prevents the "flush" symptoms and is a lot easier on your stomach. The cheaper brands tend to dump the entire dosage into your system at once, causing the rash-like flush symptoms. Brands like Slo-Niacin are made to be time released, which should alleviate this problem, almost entirely.

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      Great idea, Ed!

    • edguider profile image


      10 years ago

      Never really tried Niacin but I might ask my doctor about it :)

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      Buckie, niacin has never made me flush or flash! lol

      Koffee, thanks for visiting!

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      You're very welcome, Deb!

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      True, Pam. fortunately, I've had no side effects at all from niacin.

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      Always good to see you, HH!

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      Billy, I've never tried vegemite!

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      2be, glad you stopped by for a read!

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      Thanks a bunch, Sheila!

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      Bayou, try a different type of niacin.

    • habee profile imageAUTHOR

      Holle Abee 

      10 years ago from Georgia

      Thanks, Mike - one of my favorite hubber guys!

    • KoffeeKlatch Gals profile image

      Susan Hazelton 

      10 years ago from Sunny Florida

      I never realized that niacin was so powerful in so many areas. Thanks for the information.

    • akirchner profile image

      Audrey Kirchner 

      10 years ago from Washington

      I think it's good for the heart because it takes care of cholesterol/or improves it...but then all that said and done, wouldn't it just be a great side benefit to get (more) hot flushes/flashes? I'm still doing oatmeal and my cholesterol is fine (for now)....I'm hoping it stays that way~!

    • DeBorrah K. Ogans profile image

      DeBorrah K Ogans 

      10 years ago

      Habee, Informative hub! I think this is something I will definitely consider! Take care! Thank you for sharing, In HIS Love, Peace & Blessings!

    • Pamela99 profile image

      Pamela Oglesby 

      10 years ago from Sunny Florida

      Great information on Niacin. As a nurse teaching cardiac rehab patients I saw doctors putting people on niacin years ago and it worked for most people but some don't tolerate it. Nice hub.

    • Hello, hello, profile image

      Hello, hello, 

      10 years ago from London, UK

      That is a great information and very comprehensive hub. Thank you.

    • billyaustindillon profile image


      10 years ago

      Nice hub - I understand vegemite is one of the best ways to get niacin in your diet also.

    • 2besure profile image

      Pamela Lipscomb 

      10 years ago from Charlotte, North Carolina

      Thanks for this article. I will definitely try taking nician. My LDL is too high. I try no to eat fried foods and am watching my weight too. I know if I lost about 20 pounds it would make a real difference.

    • sheila b. profile image

      sheila b. 

      10 years ago

      Your question interested me and your information is good. This might be just what I've been looking for.

    • bayoulady profile image


      10 years ago from Northern Louisiana,USA

      My mom told me just recently that she read that niacin is good for the heart. I took it for a while years ago, but I got a rash on my neck immediately and discontinued it.I might try it again, and see if I get a rash.this time. Maybe I was taking too much.

      Great hub, helpful subject!

    • Mike Lickteig profile image

      Mike Lickteig 

      10 years ago from Lawrence KS USA

      I took Niacin for awhile to get my triglycerides down, but then I stopped. Since you mentioned it as being helpful in dealing with osteoarthritis, I might look into taking it again. Within the last year, I've started to notice some pain and stiffness from arthritis. (It can have the rest of me if it leaves the hand I draw and paint with alone...)

      Thanks for the info, Habee. I will look into niacin for my arthritis pain.



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