BOOST Plus Rich Chocolate Flavored Nutritional Drink is a nutritional shake that provides balanced nutrition as part of a healthy diet. This chocolate drink provides 26 vitamins and minerals, 14 grams of protein per serving and has 50% more calories than BOOST Original drinks (360 calories vs 240 in BOOST Original) to help gain or maintain weight. To support strong bones, this shake also contains Vitamin D and calcium. BOOST Plus Rich Chocolate Nutritional Drinks have a delicious chocolate taste. For easy portability, this pack includes six reclosable 8 fluid ounce bottles. Prebiotic/Probiotic. A product that has an on-pack statement that the product contains prebiotic and/or probiotic ingredient(s), or a 3rd party independent certification for probiotic ingredient(s).