Bakery inspired flavored nutritional drink. Immune support. Discover key nutrients found in Boost nutritional drinks to help support the immune system. Key nutrients for immune support vitamins C & D. Zinc, iron & selenium. Vitamins. Protein. Minerals. Boost High Protein Nutritional Drinks: Help you get more out of life today and tomorrow with tailored nutrition to help meet your needs. Suitable for lactose intolerance. High protein nutritional drink to help you be your best!