Vitamin D. Our farmers pledge no artificial growth hormones (no significant difference has been shown in milk from cows treated with the artificial growth hormone rbST and non rbST treated cows). Recyclable only where facilities exist. Visit recyclecartons.com to see if recyclable in your area. As your trusted dairy, we're passionate about providing quality dairy products. That's why we hold our buttermilk to the highest standard. Our farmers pledge to never use artificial growth hormones, just like we promise to always deliver quality dairy products from farm to fridge. Enjoy our buttermilk in your favorite recipes and try all of our DairyPure products. Lowfat cultured buttermilk. www.dairypure.com. Comments? 1-800-395-7004. Grade A. Pasteurized. Homogenized.