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 (≥ 8.5 g per serving), ranking it with egg as one of the highest quality protein sources available.