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). 37% less fat than regular cultured buttermilk. 2% milkfat. Grade A. Pasteurized. Homogenized. Comments? 1-800-395-7004. Fat reduced from 8 g to 5 g.