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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.
For a symptom-free man of 46 years, the risk of developing BPH over the next 30 years is 45%. Incidence rates increase from 3 cases per 1000 man-years at age 45–49 years, to 38 cases per 1000 man-years by the age of 75–79 years. While the prevalence rate is 2.7% for men aged 45–49, it increases to 24% by the age of 80 years. [169]
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.
Considering 30 to 50 percent of men are affected by hair loss by age 50 — it’s no surprise that some turn to herbal remedies like saw palmetto.
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.
Erect stems or trunks are rarely produced, but are found in some populations. It is a hardy plant; extremely slow-growing, and long-lived, with some plants (especially in Florida) possibly being as old as 500–700 years. [6] Saw palmetto is a fan palm, with the leaves that have a bare petiole terminating in a rounded fan of about 20 leaflets ...
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).