Researchers out of Dartmouth Medical School studied 99 men who were all clients at fertility clinics. Each filled out a questionnaire listing what they ate and found that saturated fats, the stuff in meat and dairy foods, was associated with lower sperm counts. In fact, the men in the study who consumed the most saturated fat had 35 percent fewer sperm than the men who at the least. Conversely, the researchers found men benefited from eating good omega-3 fats fats, the kind found in fish and some plants, and had slightly more correctly-formed sperm than those who ate less omega-3 fats. To be clear, this study does not say if the men's diet caused the decline in sperm count. It merely says they may be connected.
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