Too much fat prompts your body to pump out less testosterone and more estrogen, which is bad for your fertility, dr. Researchers from the netherlands found that men with a waist circumference of 40 inches or greater had lower sperm concentrations and counts of normal-moving sperm than guys with a more whittled waist. Testosterone levels may be one possible explanation for this, according to study author leigh simmons, ph. (to lose fat fast, try. Together, you can come up with a plan to cut back.
Harvard university researchers found that men who ate the most processed meat had significantly lower counts of normal-shaped sperm compared to those who consumed the lowest. (think your sperm is already in top shape? check out the.