What is Gamma Oryzanol? Gamma Oryzanol (γ-Oryzanol) is a mixture of lipid molecules found in rice bran oil commonly used as a dietary supplement. Unfortunately, it is not too helpful for any specific purpose and appears to have very few possible benefits. This article is about the main benefits of Gamma Oryzanol, its potential side effects, the best time to take it, and more. Gamma-oryzanol is defined as a growth-promoting substance derived from rice bran oil, known for its effectiveness in treating menopausal symptoms and enhancing pituitary function, as well as lowering blood cholesterol and triglyceride levels. Gamma-oryzanol is a chemical found in rice bran oil and other foods. It might lower cholesterol and blood fats, but it has other uses and side effects that are not well-studied. Gamma oryzanol is a substance from rice bran oil that might lower cholesterol and improve eczema symptoms. Learn about its possible benefits, risks, precautions, and how to take it.