Ensure Protein Max 30 g nutritional supplement shakes provide an excellent source of protein. Protein helps build strong muscles, build and repair body tissues, and build antibodies. Each delicious ready-to-drink shake contains 30 g of high-quality protein and 150 Calories, plus 27 vitamins and minerals, including vitamins A and D, zinc, and dietary antioxidants (vitamins C and E), which help support the immune system. This product is gluten-free and suitable for people with lactose intolerance.