![]() ![]() One review study on the dietary intake of phytosterols, including beta-sitosterol, and cancer risk found that overall phytosterol intake was linked to a reduced risk of cancer ( 21). While limited test-tube and animal studies have shown beta-sitosterol to have potential anticancer effects, more research is needed in humans ( 19, 20). Produced by plants, phytosterols are natural steroids that have been linked to several health benefits, including lower cholesterol ( 18).īeta-sitosterol, in particular, has been shown to have potent antioxidant and anti-inflammatory properties ( 18, 19).Īlso present in saw palmetto, beta-sitosterol has been studied for its potential to reduce inflammation associated with urinary tract symptoms of BPH and possibly protect against prostate cancer ( 18, 19, 20). Beta-sitosterolīeta-sitosterol is a commonly occurring plant compound that belongs to a larger group of substances called phytosterols. The most commonly reported side effects include headache, dizziness, nausea, constipation, and allergic reaction ( 8). Overall, more research is needed to confirm the potential benefits and appropriate dosage of saw palmetto extract on prostate health.įinally, while it’s generally considered to be safe, saw palmetto may not be well tolerated by some individuals. However, these protective effects have not been demonstrated in humans. Some evidence from test-tube and animal research suggests that treatment with saw palmetto may help block the spread and growth of prostate cancer cells ( 15, 16, 17). Saw palmetto extract has also been claimed to help protect against prostate cancer. In one review of 17 studies that lasted 4–72 weeks, saw palmetto was found to be no more effective at reducing urinary tract symptoms than a placebo ( 14).įurthermore, given that doses vary greatly between studies, the optimal effective dose in individuals with BPH is unclear ( 9).Īlso, keep in mind that most studies only include individuals with diagnosed BPH or other prostate issues, so it’s unclear whether supplements would help prevent prostate-related urinary tract symptoms in healthy adults. ![]() Additionally, study findings on its effectiveness for BPH symptoms have been mixed. While promising, the research on the effectiveness of saw palmetto for symptoms of BPH in humans is limited. ![]() Similarly, two older studies found improvements in urinary tract symptoms in men after taking saw palmetto supplements daily for 3–6 months ( 12, 13). One study in 165 men with BPH found that taking 160 mg of saw palmetto extract capsules 4 times per day for 12 weeks significantly improved prostate symptom scores, urinary flow rate, and quality of life scores ( 11). While the exact mechanism is unknown, it’s thought that saw palmetto’s anti-inflammatory effects likely play a role ( 8, 9, 10). Specifically, saw palmetto berries and extracts are used to help treat urinary tract symptoms associated with BPH. It’s a type of palm that’s native to the Southeastern United States ( 8). Saw palmetto ( Serenoa repens) is one of the most common ingredients in prostate health supplements. As such, it’s important to always consult a medical provider before taking prostate supplements. Still, while some ingredients may help make you more comfortable, others may be ineffective or possibly harmful to prostate health. However, limited studies suggest that some ingredients may help lessen some of the uncomfortable symptoms associated with prostate issues. Overall, evidence supporting the effectiveness of supplements for prostate health is weak. Prostatitis, BPH, and prostate cancer are the most common prostate issues and often lead to lower urinary tract symptoms. The prostate gland wraps around the urethra and helps produce fluid in semen. However, many claim to help prevent or lessen the symptoms associated with prostate problems, generally by reducing inflammation. Supplements cannot cure or treat prostate-related issues.
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