If, after talking to our study staff, you qualify to participate in this study, you will be invited to come to our clinic for further evaluation. If you enroll in the study, you will be assigned by chance to receive tablets containing one of the dietary supplements (two types of clover extracts) or placebo (inactive pill). You will be expected to take two tablets each morning for 14 weeks. There are no known risks associated with the supplements. During the 14 weeks, you will complete a diary recording your hot flashes, be called three times by study staff and at the end of the 14 weeks you will be required to come back to the clinic.