rBST free no added hormones. No artificial sweeteners. Glutamine rich. Contains no artificial flavors or artificial sweeteners. This product is not a complete nutrient source. Packaged by weight, not by volume. Jarrow Formulas Whey Protein is a protein concentrate of whey, from cows not treated with growth hormone (rBST), and is ultrafiltered to be low in fat, lactose and carbohydrates. Whey Protein is a rich natural source of Branched Chain Amino Acids (BCAAs) (Isoleucine, Leucine and Valine). Each scoop of Jarrow Formulas Whey Protein provides approximately 3.8 g of BCAAs, yielding - on a per gram basis - one of the best sources of BCAAs available. Jarrow Formulas Whey Protein is rich in essential amino acids (less than 8.5 g per serving), ranking it with egg as one of the highest quality protein sources available. Provides 3.8 g (3,800 mg) of Branched Chain Amino Acids (BCAAs) per serving.