According to a study by Dr. Shanna H. Swan of the Universtiy of Rochester Medical Center, men whose mother’s ate a lot of beef during pregnancy had a sperm count about 25% below normal and three times the normal risk of fertility problems. They think it’s because of the hormones found in beef.
Six growth-promoting hormones (one of which are steroids) are routinely used in cattle production in the US and Canada and at the time of slaughter not all of them have been metabolized. Although the FDA limits the amount of hormone residue allowed, the limits may need to be reexamined based on this study.
In the meantime, if you eat beef – stick to grass-fed or organically-fed beef.
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