Wild yam extract (Dehydroepiandrosterone) is commonly known as an important endogenous steroid hormone and can be extracted from natural plants such as wild yam. The level of this nutrient may decline with age. A study published in the highly respected Journal of the American Medical Association is shown that in mature adults it promotes not only the sugar metabolism which is considered very important in the area of anti-aging, but also serves a critical way to support female fertility.