Product Description:Jarrow formulas whey protein is a 100% natural protein concentrate of whey, from cows not treated with growth hormone RBST and is ultra filtered to be low in fat, lactose and carbohydrates. Whey protein is a rich natural source of BCAAS isoleucine, leonine and valise. Each packet => 23 gramme of whey protein provides a total of 4 gramme of BCAAS. No other source of protein provides as much of the BCAAS as whey. Whey protein is rich in essential amino acids, ranking it with egg as one of the highest quality protein sources available.