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Gamma oryzanol is a mixture of substances derived from rice bran oil, including sterols and ferulic acid. It has been approved in Japan for several conditions, including menopausal symptoms, mild anxiety, stomach upset, and high cholesterol. In the US, it is widely used as a sports supplement, as well as for reducing cholesterol. However, there is no meaningful evidence supporting the use of gamma oryzanol for any of these purposes.
There is no daily requirement for gamma oryzanol.
Rice bran oil is the principal source of gamma oryzanol, but it is also found in the bran of wheat and other grains, as well as various fruits, vegetables, and herbs. However, to get enough gamma oryzanol to reach typical therapeutic dosages, you will need to take supplements.
Last reviewedSeptember 2014by EBSCO CAM Review Board
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