Casein, a protein contained in milk products, was referenced previously in this blog. Casein is linked to cancer growth.
Below is a link from Dr. Mercola’s site. The article and video discuss an artificial hormone, Rgbh, given to cows in the U.S. to stimulate milk production. Rgbh is found in many non organic milk, cheeses and other dairy products. The article shows how milk products which are not certified organic may contribute to your chances of getting breast cancer.
Just as a side note, organic ghee is fine for cooking as it is casein free. It looks, tastes, and cooks like butter. It is actually clarified butter. You can buy it in the non refrigerated shelves near the oils. It is the one dairy product which I use.