80% OF US BEEF IS HORMONE TREATED. “In 2011, more than 34 million cattle and 850,000 calves were slaughtered to provide beef for US consumers … 80 percent of all US feedlot cattle are injected with hormones to make them grow faster … one government study from 2007 estimated that approximately 17 percent of all cows in the US were given the genetically engineered growth hormone rBGH to increase milk production.” (2011).
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