20 Scariest Food Facts

7. Milk contains hormones that may cause cancer.

In 1970, a typical dairy cow could produce about 10,000 pounds of milk per year. Today, that same cow produces roughly 20,000 pounds. So did cows change? Nope. It’s their feed that’s different. Today’s cows are routinely fed a hormone called recombinant bovine somatotropin, or rBST. Problem is, studies have linked rBST to a multitude of cancers, including those of the prostate, breast, and colon. And while milk from rBST-treated cows is ubiquitous in America’s supermarkets, some of the biggest players are getting wise. Stores like Whole Foods, Wal-Mart, and Kroger only carry rBST-free dairy.