Dr. Clark Store Niacin 500 mg

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Dr. Clark Store Niacin 500 mg (100 caps)

Use caution when taking Niacin in high doses.

Niacin (Vitamin B-3) is an essential B-group vitamin necessary for good health.

Niacin is a vasodilator, meaning it opens up the capillaries and allows increased blood flow to the skin. The opening up of the capillaries causes the characteristic “niacin flush” with symptoms that can include reddening of the skin, increased warmth, skin tingling, and itching. It usually starts at the forehead and works its way down the body. The niacin flush is harmless and will pass, but this can be uncomfortable for some people.

High-dose Niacin is not recommended for first-time niacin users. If you flush with low-dose Niacin, you can expect a more intense and prolonged flush if you jump to a high dosage without a gradual build-up. Start with a low-dose niacin as your practitioner instructs you to avoid an intense flush. You can open a capsule, take only a portion of the niacin power, and observe how your body reacts. If you are working up to a higher dose, gradually increase the amount of powder in each dose. Each time Niacin is taken, the flush is repeated but tends to be at a lesser degree.

Why high-dose Niacin?
Abram Hoffer, MD, PhD was a pioneering niacin researcher who advocated using nutrition-based medicine, including regular, prolonged therapeutic doses of Niacin, to help prevent and treat a broad spectrum of health problems.

In a book co-authored by Dr. Hoffer, Niacin: The Real Story, researchers challenged the Safe Upper Limit (UL) of Niacin set forth by the Institute of Medicine, which is currently 35 mg per day for adults. Hoffer and his associates debated the legitimacy of the government standard UL when, to date, there is no evidence to prove that high doses of Niacin are harmful to human health.

Dr. Hoffer’s standard therapeutic niacin recommendation was 3,000 mg per day divided into three doses. He recommended taking Niacin with a meal for improved absorption.

Niacin (Vitamin B3) helps the body utilize proteins, fats, and carbohydrates for energy, supporting nerve and skin health. Niacin may help the body’s efforts to lower cholesterol and support digestive health.

How to work yourself up to 3,000 mg of pure Niacin per day:
You may be wondering how to build up to 3,000 mg of pure Niacin per day, as described by Dr. Abram Hoffer in Niacin: The Real Story.

You may not know that time-released Niacin, which is designed to limit the effects of flushing, has been found to be toxic to the kidneys, so it should be avoided. Take only pure Niacin.

Keep in mind that niacinamide is an option, although not as potent as pure Niacin, for those who cannot tolerate the niacin flush. When taking pure Niacin, you may experience flushing from the top of your head down to your lower back. The “Niacin flush” is a harmless reaction, but you may want to limit the intensity of the flush by starting with small amounts of Niacin. As always, please consult with your qualified healthcare professional before taking vitamins and supplements, especially in high doses.

Key Benefits

  • Promotes energy production
  • Supports the nervous and circulatory systems
  • Aids in healthy digestion


Niacin 500 mg NE

Other Ingredients: Gelatin (Bovine) Capsules

Allergy Information: Contains NO Additives, Gluten Free, Soy Free, Non-GMO, BSE (Bovine Spongiform Encephalopathy) Free, Solvent Free; Made in USA

Suggested Use

Adults take one (1) capsule daily, preferably with a meal or as directed by a healthcare professional. Consult with a physician before administering to children.

PLEASE NOTE: Niacin may cause temporary skin flushing, tingling, or itching, especially when taken on an empty stomach. The “Niacin flush” is a harmless reaction for most people and will pass.

Precautions: As always, consult with a qualified healthcare practitioner before use, primarily if you are pregnant, nursing, or consuming any pharmaceutical medications. If any adverse reactions occur, immediately stop using this product and consult your doctor. If the seal under the cap is damaged or missing, do not use it. Store at room temperature. Keep out of reach of children. 

*Please note label/packaging color and/or shape may vary.

These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.