Gold standard 100 whey contains whey protein isolates of wpi rates 90 pure protein wpi is known as the highest quality whey ingredient each serving of gold standard 100 whey contains 24 grams of premium whey protein and 55 grams of branched chain amino acids to help muscle repair and growth gold standard 100 whey contains just 1 gram of fat per seving and 1 gram of sugar making it ideal for those who are watching their macronutrients its tasty and is easily mixed as the powder is in