BOOST Calorie Smart Drink has the vitamins minerals and protein that your body needs with only 180 calories and 4 g of sugars per 8 fl oz bottle so you can feel smart about your calorie and sugar intake. BOOST Calorie Smart® Drink provides 15 g of protein to help maintain muscle and manage hunger and is packed with 25 essential vitamins & minerals—including calcium and Vitamin D. All that nutrition makes it a great snack or mini-meal.