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Beta-Sitosterol for Sports & FitnessFind Products

Also indexed as:Phytosterols (Beta-Sitosterol), Plant Sterols (Beta-Sitosterol), Plant Sterols
Beta-Sitosterol
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  1. Beta-Sitosterol as a Nutritional Supplement

Why Do Athletes Use It?*

Some athletes say that beta-sitosterol helps boost resistance to infection.

What Do the Advocates Say?*

A combination of beta-sitosterol (BSS) and BSSG, a related compound, is known to enhance some parts of the immune system in animals and humans. While not proven to prevent infections in athletes, this combination has been shown to prevent the decline in immune function often experienced at the end of an ultramarathon.

*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.

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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. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. 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 2025.