rBST 全名是 recombinant bovine somatotropin (rBST)，是 Mansanto 公司对人类的危害最大的发明之一。另一个是 GMO 转基因生物。
In October 2010, a U.S. court of appeal found based on studies presented that there is a "compositional difference" between milk from rBSG-treated cows and untreated milk. The court found that studies have shown that rBST milk has: increased levels of the cancer-causing hormone IGF-1; lower nutritional quality when produced at certain points in the cow's lactation cycle; and more pus in the milk (increased somatic cell counts), which "make the milk turn sour more quickly and is another indicator of poor milk quality."
但是美国的 FDA 却说：
According to the Food and Drug Administration, food products made from rBST treated cows are safe for human consumption, and no significant difference exists between milk derived from rBST-treated and non-rBST-treated cows.[15] The FDA found BGH to be biologically inactive when consumed by humans and found no biological distinction between rBST and BST.
