Beta-sitosterol is a plant sterol, a type of naturally occurring compound found in various plants. It belongs to the group of phytosterols, which are structurally similar to cholesterol, but they are derived from plants rather than animals. Beta-sitosterol is abundant in several edible plants, such as fruits, vegetables, nuts, and seeds.
Beta-sitosterol is known for its potential health benefits, particularly in supporting cardiovascular health and promoting a healthy prostate.
The enzyme 5-alpha-reductase converts testosterone, the primary male sex hormone, into dihydrotestosterone (DHT), which is a more potent androgen. DHT is thought to be the main underlying cause of male pattern baldness (MPB) and also some female hair loss.
Beta-sitosterol is believed to inhibit the activity of 5-alpha-reductase, thereby reducing the conversion of testosterone to DHT. By doing so, it may reduce MPB.
Should you try it?
I personally am not an advocate of medications that reduce DHT — unless used by women. DHT is a very important hormone for men. It increases performance in exercise and drive to succeed. If you reduce DHT, you’ll likely make your life worse (in my opinion).