From the No. 1 doctor-recommended brand, Ensure High Protein nutritional shakes provide targeted high-protein nutrition to help you stay active and energetic. Each delicious shake has 16g of high-quality protein, 2g of fat, 27 essential vitamins and minerals, and 160 calories. 75% more protein than Ensure Original. Ensure High Protein, 16g protein/160 calories per 8 fl oz versus Ensure Original, 9g protein/220 calories per 8 fl oz. Not for people with galactosemia.