Rbgh is a genetically engineered hormone that is injected into cows in order to increase their milk supply. In my research, I found that the effects are horrible for the cows and people as well...
hormones

Is Your Milk Genetically Modified With RBGH?

NIH Steps Up Warning about Polycarbonate Safety
The National Toxicology Program, an arm of the federal National Institutes of Health, has amplified concern about Bisphenol A, the plastic ingredient that some independent scientists have long criticized. What does that mean?

Wal-Mart Tells Hormones to Hit The Bricks!
Today I caught news of quite the story that will hopefully have a ripple effect on other companies throughout the industry. Giant food retailer Wal-Mart Stores Inc. announced that its store brand milk in the United States will now come exclusively from cows not treated with artificial growth hormones.

Eating Meat Harms YOU and the PLANET
I am no vegetarian (love my meat) but this article did put a new light to this issue which usually I don't pay much attention to.
"According to Vernon Coleman, eating meat has health hazards because along with the meat you may be consuming hormones, drugs and other chemicals that have been fed to the animals before they were killed. No one knows precisely what effect eating the hormones in meat is likely to have on your health ... "