What are phytoestrogens?

Phytoestrogens are herbs that mimic estrogen, including black cohosh, ginseng, and saw palmetto. Such herbs should be used with caution, as clinical studies have not yet determined the long-term effects of estrogenic herbs on health.

Phytoestrogens are a class of herbs that mimic the structure and function of estrogen. We’ve already learned that black cohosh mimics estrogen to reduce symptoms of menopause. Other phytoestrogens may function in the same way, thereby reducing hot flashes and mood swings associated with low levels of estrogen.

Estrogenic herbs include alfalfa, aniseed, black cohosh, ginseng, licorice root, pleurisy root, red clover, and saw palmetto.

The term “phytoestrogen” has become an increasingly popular buzzword as the Baby Boom generation grows closer to menopause. Some sources claim that phytoestrogens prevent the symptoms of perimenopause without harmful side effects. Other sources declare that phytoestrogens might also prevent certain kinds of cancer.

But clinical studies have not been sufficient to form the basis for such claims. In fact, phytoestrogens may actually increase the risk for some cancers. Women should therefore use caution, and consult with a pharmacist before supplementing with a phytoestrogen.