There are many different kinds of wild yams. Some are edible, while others are used medicinally as an herbal remedy. They are often promoted as a natural alternative to hormone replacement therapy
or other uses.
Wild yam contains a compound known as diosgenin. Many years ago, diosgenin was used to make other hormones (such as the ones in birth control pills
) in laboratories. People have mistakenly assumed that wild yam is a "natural progesterone" because diosgenin can be used to make progesterone in a laboratory. However, the human body cannot convert diosgenin into progesterone.
While this supplement does not appear to have progesterone-like properties, it does seem to have estrogenic (estrogen-like) properties.
In general, there is not enough scientific evidence to suggest conclusively that it is indeed effective for most uses (see Does Wild Yam Work? for more information)
As is common with herbal supplements, there is no well-established standard dosage for this product.