Free Republic

A study recently published in Human Reproduction demonstrated that intake of soy foods significantly reduces sperm counts in men. The study is especially significant because it is the largest study in humans to examine the relationship between semen quality and phytoestrogens (plant compounds that can mimic the physiological effects of the endogenous hormone, estrogen). Dr. Jorge Chavarro of the Harvard School of Public Health and his colleagues found that men who ate the most soy food had 41 million sperm per milliliter less than men who did not consume soy products. The normal sperm concentrations for men ranges between 80...

COPENHAGEN, Denmark, June 19, 2007 (LifeSiteNews.com) - A study conducted in Denmark found that the sperm count of men who are conceived by fertility treatments is up to 50 percent lower than normal.Published in March 1 by the American Journal of Epidemiology (AJE), the study was entitled, "The Fertility Treatment and Reproductive Health of Male Offspring: A Study of 1,925 Young Men from the General Population." The AJE explains that all 1,925 Danish participants were undergoing compulsory medical testing at the time for army fitness requirements. The volunteers were required to give both a semen sample and a blood sample...