It''s our Whey or the highway! Whey is a popular protein choice not only for bodybuilders and people on high protein diets, but for those looking for a quick, easy-to-use nutritional drink. As a natural by-product of milk, Whey is positively loaded with strength-building protein, which plays a role in optimal nutrition.** Whey contains branched chain amino acids made up of Leucine, Isoleucine and Valine - which are important components of muscle tissue.** Whey also contains immunoglobulins and lactoferrin - natural compounds that support healthy immune system function.** Precision Engineered Whey Protein is a premium whey protein containing a full spectrum glycomacropeptide complex, and provides exceptional nourishment designed for those who expect only the best in a nutritional drink.