SKINNY PROTEIN® GAIN THE MUSCLE, LOSE THE FAT. Is it possible to pack on muscle size without getting too bulky? If you’ve ever asked this question, Skinny Protein® is made just for you. It’s low in calories, fat and sugar but crammed full of quality whey, with 23.4g protein in every scoop. Skinny Protein® also helps you control how much you eat during the day. The high protein content and thick consistency give you a satisfyingly full tummy, so you’re less hungry in between meals.