Gamma Oryzanol

Alternative Medicine The following information is specific for alternative and complementary medicine. For additional evidence-based information on diseases, conditions, symptoms, diagnosis, treatment and wellness issues, continue searching the Healthwise Knowledgebase.

Related Topics

See also:

• Gamma Oryzanol for Sports & Fitness

Gamma oryzanol is a naturally occurring mixture of plant chemicals called sterols and ferulic acid esters.

Where is it found?

Gamma oryzanol is a natural component of rice bran, corn, and barley oils. Gamma oryzanol is also available as a supplement.

Health Concerns

Gamma oryzanol has been used in connection with the following condition (refer to the individual health concern for complete information):

Rating	Health Concerns
	Gastritis
	Athletic performance
Reliable and relatively consistent scientific data showing a substantial health benefit. Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit. An herb is primarily supported by traditional use, or the herb or supplement has little scientific support and/or minimal health benefit.

Deficiency Symptoms

Who is likely to be deficient?

Since gamma oryzanol is not an essential nutrient, it is not associated with a deficiency state.

Dosage

How much is usually taken?

Much of the human research with gamma oryzanol used 300 mg per day. Healthy people do not appear to need this supplement.

Side Effects

Are there any side effects or interactions?

Some research suggests that gamma oryzanol taken in moderately high amounts (up to 600 mg per day) for several months can cause dry mouth, sleepiness, hot flushes, irritability, and light headedness in some individuals.¹

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

References

1. 34. Takemoto T, Miyoshi H, Nagashima H. Clinical trial of Hi-Z fine granules (gamma-oryzanol) on gastrointestinal symptoms at 375 hospitals (Japan). Shinyaku To Rinsho 1977;26 [in Japanese].

---

Last Review: 01-21-2009

Copyright © 2009 Aisle7  All rights reserved. www.Aisle7.net

Learn more about Aisle7.

Learn more about the authors of Aisle7 products.

The information presented in Aisle7 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 pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires February 2010.

	Go to top of page
This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.