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Yoplait, one of the largest yogurt manufacturers in the U.S., has announced that it will now only use milk products from cows that have not been treated with recombinant bovine growth hormone, or rbGH, reports Civil Eats. All of Yoplait's dairy products will be rbGH-free by August of this year. Yoplait says it's the first major yogurt manufacturer to go rbGH-free, though companies like Stonyfield, Nancy's, Cascade Fresh and Brown Cow have been using rbGH-free milk for years. The use of rbGH has been linked to increased rates of infections in dairy cows, necessitating greater antibiotic use and furthering cycles of antibiotic-resistant disease. Some studies have shown that rbGH raises the level of a hormone called IGF-1 in cows's milk; higher than normal levels of IGF-1 in humans may raise the risk of breast cancer, though the link is far from clear.
Consumer demand has forced major grocery chains like Wal-Mart and Safeway to phase out the hormones in their own dairy products - some 70 percent of consumers say they are concerned about consuming synthetic growth hormones.
