Niacin (vitamin B3)

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Niacin (vitamin B3) is a key part of Dr. Hulda Clark’s therapy as a detoxifier, circulation booster, and metabolism supporter. It comes in two main forms: niacin (nicotinic acid) and niacinamide (nicotinamide). Both serve as precursors for the essential coenzymes NAD and NADP, which are crucial in cellular oxidation and reduction processes, helping the body release energy and eliminate toxins.

What niacin does

Niacin supports over 45 chemical reactions in the body. It:

• Improves circulation and dilates blood vessels, reducing muscle cramps, headaches, anxiety, and irritability.
• Lowers cholesterol and triglycerides and supports heart and brain health.
• Strengthens the skin, nervous system, and digestive tract.
• Promotes the production of hydrochloric acid, improving digestion in older people.
• Supports detoxification of alcohol, nicotine, and solvent residues such as benzene and ergot toxins.

Dr. Clark’s use of niacin

She integrated niacin into multiple therapy steps:

• Circulation and leg pain: 25 – 50 mg niacin (not time-release) per meal to open blood vessels and relieve cramps or “growing pains” in children and adults.
• Aging and vitality: 250 mg time-release niacin each morning to stimulate blood flow and warmth; additional doses may be taken throughout the day to maintain circulation.
• TIA (mini-stroke) and circulation recovery: immediate intake of 100 mg niacin plus 1 g vitamin C and a B-complex.
• Alcoholism, seizures, and schizophrenia: niacinamide 500 mg three times daily to aid liver detoxification of ergot and solvent residues and to restore neurotransmitter balance.
• Mold and viral detoxification: 500 mg niacinamide with vitamin C and B-complex to help neutralize mycotoxins and restore immune function.
• Parasite cleanse: 500 mg niacinamide to counteract the alcohol content in green black walnut tincture.

Niacin powers the NAD enzymes that detoxify alcohol, benzopyrenes, and other pollutants. A deficiency of NAD (and consequently niacin) causes impaired cell oxidation, especially in cancerous tissues. Supplementing with niacin and niacinamide restores NAD and NADP levels, boosting cellular energy and detoxification ability.

Dosage adaptation

Niacin dosage should always be adapted to the individual’s tolerance and health condition. The most important factor is how the body reacts to the typical “niacin flush,” the brief warmth and redness that signal improved circulation.

• Beginners or those with sensitive systems can start with 25 mg once daily and slowly increase to 100 – 250 mg per dose as the body adapts.
• People using niacin for detoxification, circulation problems, or low energy may take up to 500 mg daily, divided into smaller doses.
• Non–time-release niacin is preferred for active circulation support, while time-release forms can be used for convenience.

To minimize discomfort, niacin should always be taken with food or a full glass of water. Once the flush reaction becomes mild, the chosen dosage can be maintained or slightly increased to match personal needs and goals.

General health support

In Dr. Clark’s general supplement program, vitamin B3 (niacin) “improves circulation, controls cholesterol, regulates the nervous system, and is useful for dermatitis.” Recommended dosage: 1 – 2 capsules per day; niacinamide offers better absorption and no flushing.

Niacin’s ability to widen blood vessels, restore energy, and aid detoxification makes it one of Dr. Clark’s most versatile vitamins—supporting circulation, brain function, and cellular repair across her full health and prevention programs.