NADH

Also indexed as: Nicotinamide Adenine Dinucleotide

Nicotinamide adenine dinucleotide (NADH) is the active coenzyme form of vitamin B3. It plays an essential role in the energy production of every human cell.

Where is it found?

NADH is found in the muscle tissue of fish and poultry and cattle, as well as in food products made with yeast. However, it is not known whether the NADH from these sources can be efficiently absorbed or utilised by the body. It is also available as a nutritional supplement.

NADH has been used in connection with the following conditions (refer to the individual health concern for complete information):

Science Ratings	Health Concerns
	Chronic fatigue syndrome Parkinson’s disease
	Alzheimer’s disease Depression
Reliable and relatively consistent scientific data showing a substantial health benefit. Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit. For a herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit.

Science Ratings

Health Concerns

Chronic fatigue syndrome

Parkinson’s disease

Alzheimer’s disease

Depression

Reliable and relatively consistent scientific data showing a substantial health benefit.
2Stars

Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
1Star

For a herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit.

Who is likely to be deficient?

NADH deficiency is known to occur only in the presence of vitamin B3 deficiency, which is rare in Western society except in some alcoholics.

Which form of NADH is best?

NADH appears to be a chemically unstable molecule that decomposes rapidly. For this reason, techniques have been developed to stabilise the NADH sold in tablet form. At the present time, it is not known which commercially available NADH products are most effective.

How much is usually taken?

Researchers have used 10 mg per day, taken with water only, on an empty stomach.

Are there any side effects or interactions?

Clinical studies of NADH using oral or intravenous administration have reported no side effects with up to one year or more of use. Longer-term use has not been evaluated.

At the time of writing, there were no well-known drug interactions with NADH.

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The information presented in Healthnotes is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or chemist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires August 2007.