CELSIUS is a functional, healthy energy drink proven to accelerate metabolism and burn body fat and calories. CELSIUS is pioneering the Energy Drink Category by defining a new cross-section; its primary placement fills a void where Functional Beverages meet Healthy Energy. CELSIUS' Natural line contains no artificial sweeteners, flavors or colors and is available in 3 sparkling and 3 non-carbonated flavors. CELSIUS. LIVE FIT.