Beta-Sitosterol for Sports & Fitness
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.
How Much Is Usually Taken by Athletes?
BSS, a natural sterol found in many plants, has been shown in a double-blind trial to improve immune function in marathon runners when combined with a related substance called B-sitosterol glucoside (BSSG).1 This implies that beta-sitosterol might reduce infections in athletes who engage in intensive exercise, though studies are still needed to prove this. The usual amount of this combination used in research is 20 mg of BSS and 200 mcg of BSSG three times per day.
*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 Healthnotes 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 June 2017.