Bully Beef by mike · 2007-03-28 A mother’s high beef consumption while pregnant was associated with lower sperm counts in her son … among the 51 men whose mothers were the highest beef eaters, almost 18 percent had sperm counts classified by the World Health Organization as “sub-fertile” (20 mill/ml or lower). By comparison, sperm concentrations were 24 percent higher for men whose mothers ate less beef, and only about 5 percent had sperm counts that could be classified as sub-fertile. Labels: meat Related