Studies in the laboratory show that saw palmetto works by countering effects of male sex hormones such as testosterone and DHT. It appears to reduce levels of these hormones in body tissues like the prostate. Other studies have noted that saw palmetto reduces the conversion of testosterone to DHT, its more potent form. Saw palmetto berry extracts also reduce inflammation and swelling by preventing the formation of compounds that cause these reactions.
In a laboratory study, a saw palmetto extract was found to slow the growth of normal prostate cells and increase their sensitivity to radiation, while not affecting prostate cancer cells. Since this may increase the risk of complications, patients should consult with a physician before using saw palmetto supplements during radiation therapy.
Saw Palmetto
- American dwarf palm tree
- Cabbage palm