Nutritional information may vary depending on flavour. Packed with 23g of protein per serving, this superior-quality blend is ideal to provide your muscles with the protein they need for growth and maintenance,1 so that you can keep making progress with your fitness goals. What is Whey Protein Isolate? Whey isolate is a form of protein that’s been highly refined for purity — resulting in a high protein content, with low sugar and zero fat.