Jarrow Formulas Whey Protein is a 100% natural 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 BCAAS (Isoleucine, Leucine and Valine). Each Scoop (23 grams) of Whey Protein provides a total of 4 grams of BCAAs. No other source of protein provides as much of the BCAAs as whey.Whey Protein is extremely rich in essential amino acids, ranking it with egg as one of the highest quality protein sources available. Reviews as Follows: From Ohio: "I have tried lots of protein powders. Two things I look for is how easily it dissolves and how it tastes. This powder gets A+ on both. Dissolves quickly in water, milk or soy milk and has no nasty, chalky taste. Add a packet of Sweet Fiber with water for perfect lo carb meal replacement." From Pennsylvania: "I could not lose weight untill I started using this product also helps build muscle." From Texas: "My sister started using the whey regularly in conjunction with physical activity and no other significant changes in diet. Within a month her figure was leaner and she had lost several pounds of weight, specifically around the mid-section. I'd recommend taking a scoop before and after the any type of exercise for best results." From Texas: "This product is perfect for adding protein to your diet. It mixes well and I used flavored drops by Capella coffee company to change the flavors. Yum! I had lapband surgery 6 weeks ago and this product has helped me maintain my calories and keep my protein intake up. Thanks for a great product."