Some athletes say that gamma oryzanol helps increase muscle size and strength gains and reduce fatigue.
What Do the Advocates Say?*
Gamma oryzanol and its related compound ferulic acid are thought to affect hormone function in the body, resulting in anabolic effects on muscle growth as well as reduced sense of fatigue. Early studies appeared promising, but a recent double-blind trial cast doubt on any real benefits.
It appears that gamma oryzanol is very poorly absorbed from the gastrointestinal tract.
*Athletes and fitness advocates may claim benefits for this supplement based on their personal or professional experience. These are individual opinions and testimonials that may or may not be supported by controlled clinical studies or published scientific articles.
Gamma Oryzanol
How Much Is Usually Taken by Athletes?
Gamma oryzanol is a mixture of sterols and ferulic acid esters. Despite claims that gamma oryzanol or its components increase testosterone levels, stimulate the release of endorphins, and promote the growth of lean muscle tissue, research has provided little support for these claims and has also shown gamma oryzanol to be poorly absorbed.1 A nine-week, double-blind trial of 500 mg per day of gamma oryzanol in weight lifters found no benefit compared with placebo in strength performance gains or circulating anabolic hormones.2 However, a small, double-blind trial using 30 mg per day of ferulic acid for eight weeks in trained weight lifters did find significantly more weight gain (though lean body mass was not measured) and increased strength in one of three measures compared with placebo.3
Side Effects
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.4
Interactions with Supplements, Foods, & Other Compounds
At the time of writing, there were no well-known supplement or food interactions with this supplement.
Interactions with Medicines
As of the last update, we found no reported interactions between this supplement and medicines. It is possible that unknown interactions exist. If you take medication, always discuss the potential risks and benefits of adding a new supplement with your doctor or pharmacist.
Gamma Oryzanol
Where to Find It
Gamma oryzanol is a natural component of rice bran, corn, and barley oils. Gamma oryzanol is also available as a supplement.
The information presented by TraceGains 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 December 2024.
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