Types There are certain substances that are used in the ERT: such as conjugated estrogens or conjugated equine estrogens under the brand name of Premarin; patch; estrogens made of singular estrogen compounds; drugs such as raloxifene and alendronate; herbal remedies such as Black Cohosh, known to help reduce menopausal symptoms; and other hormones involved such as progesterone or progestins,. On the other hand, study shows that Estrogen patches reduce the risk of heart diseases but it is not strongly recommended for people to use it as an alternative for heart diseases because there is no sufficient proof supporting the study yet. These are mere presumptions and theories of some scientists. Despite its popularity in the market and in the scientific field for curing and preventing various kinds of illness and other afflictions, many issues still abound regarding its very nature. Along side these issues were countless questions that continue to bewilder many people, one of the most frequently asked question regarding estrogen is how much is too much. Estriol - this is the least powerful among the three. Since these estrogen hormones can be taken, they have the same effects and side effects especially if the doses are the same. The hormones should not be used when a woman is pregnant because it can lead to miscarriage. If taken at the earlier stage of pregnancy, it can badly harm the developing fetus. The Different Foods that Contains Natural Estrogen Estrogen is very important in a woman s body. This hormone is responsible for the regular menstrual period that usually occurs every 28 days. If your body is incapacitated of producing estrogen, you will experience menopause or the permanent cessation of menstruation. Estrogen supplements - these are drugs that are taken orally to maintain the normal estrogen level in the body. These drugs are available over all the leading drug stores in your area. However, you will need to consult your doctor first for further medical management. They will educate you about the function of the normal estrogen level in the body and all the information you need regarding this matter.