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§. † Per 330-mL serving. ‡ less than 1.5 g of lactose per 330-mL serving. § Not for people with galactosemia.