Whey protein isolate is a hydrolyzed whey protein isolate, which gives it a light texture and tangy taste. It's a great choice for those looking for a different way to consume protein. Features of Applied Nutrition Clear Whey 875g Helps grow and maintain muscles, and improves physical fitness for muscle growth and repair. A serving provides 21g of protein along with 5g of branched-chain amino acids (BCAAs) Eat only 1 gram of carbohydrates per serving Low calories and sugar. Each serving contains only 90 calories, and is low in sugar, making it a great choice for those looking to reduce their sugar intake.