Vitamin D. www.dairypure.com. Grade A. Pasteurized. Homogenized. Comments? 1-800-395-7004. Gluten free. As your trusted dairy, we're passionate about the purity of our milk. That's why we hold our milk to the highest standard. Our farmers pledge to never use artificial growth hormones, just like we pledge to deliver fresh, quality milk from farm to fridge. 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). Backed by our five point purity promise.