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A plant-derived chemical similar to cholesterol, commonly found in wheat germ, soybeans, and corn oil.
Synonym(s): beta-sitosterol

beta-sitosterol (bā·t·sisˑ·ter·l),

n a mixture of phytochemicals—specifically sitosterolins and phytoesterols. Used to treat an enlarged prostate and as an immunomodulator. No known precautions.
References in periodicals archive ?
Interestingly, beta-sitosterol presence enhances these polyphenol actions.
But the studies were small and short term, and tested different amounts and formulations of beta-sitosterol.
Ryan and colleagues show that bioactive rice bran derived small molecules include, but are not limited to polyphenolics, ferulic acid, tricin, beta-sitosterol, -oryzanol, tocotrienols/tocopherols, and phytic acid.
For men whose prostate starts to grow because they are over 40, why shouldn't they be provided with the opportunity to reduce nighttime trips to the bathroom through the use of beta-sitosterol and saw palmetto, rather than taking the prescription drug finasteride?
14) The most studied and most commonly used nutrient from this category is beta-sitosterol (BSS) and its glycoside (BSSG).
In this regard, various dietary cholesterol inhibitors, such as plant sterols and stanols, like beta-sitosterol, campesterol and stigmasterol, are recommended to lower LDL cholesterol without lowering the beneficial HDL cholesterol.
Oil made from the Neem tree's fruit and seeds contains steroids, such as beta-sitosterol (used to treat men suffering from enlarged prostate glands), linoleic and olei acids (Omega 6 and 9).
Recent published claims indicate that acai beta-sitosterol prevents immune suppression and modulates lymphocyte activity.
Then they "treated" them in lab dishes by adding simvastatin (a statin) or beta-sitosterol (a phytosterol).
High levels of intake of plant sterols may produce an oestrogenic effect, with a significant decrease in testicular weight and sperm concentrations after beta-sitosterol treatment.