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Saw palmetto extract has been studied in clinical trials as a possible treatment for people with prostate cancer and for men with lower urinary tract symptoms associated with BPH. [1] [3] As of 2023, there is insufficient scientific evidence that saw palmetto extract is effective for treating cancer or BPH and its symptoms.
As of 2019, about 94 million men aged 40 years and older are affected globally. [3] BPH typically begins after the age of 40. [1] The prevalence of clinically diagnosed BPH peaks at 24% in men aged 75–79 years. [3] Based on autopsy studies, half of males aged 50 and over are affected, and this figure climbs to 80% after the age of 80. [3]
Saw palmetto (or Serenoa repens) – a type of palm tree found growing in the southeastern United States. Its extract has been promoted as a prostate cancer medicine; however, according to the American Cancer Society, "available scientific studies do not support claims that saw palmetto can prevent or treat prostate cancer in humans".
How saw palmetto extract may help benefit men by reducing the uncomfortable symptoms of an enlarged prostate, including not being able to urinate easily.
Saw palmetto is the next big thing in hair care. Just over the past few years, it has emerged as a leading ingredient in a variety of hair care products, particularly in shampoos.
Considering 30 to 50 percent of men are affected by hair loss by age 50 ... that some turn to herbal remedies like saw palmetto. ... and potentially dangerous for those using saw palmetto to treat ...
Saw palmetto extract has been studied as a possible treatment for people with prostate cancer and for men with lower urinary tract symptoms associated with benign prostatic hyperplasia (BPH). [ 5 ] [ 7 ] [ 8 ] As of 2023, there is insufficient scientific evidence that saw palmetto extract is effective for treating cancer or BPH and its symptoms.
Later studies, comparing saw palmetto with Proscar, show that saw palmetto is no more effective than the placebo. Studies comparing saw palmetto with Proscar were likely funded by the drug company. You may draw your own conclusions. All studies focused on improving urine flow over a relatively short term (a few years).