Energy drinks fall under the category of functional beverages, which also includes sports and nutraceutical drinks. Sports drinks are generally consumed during exercise to avoid dehydration. Whereas nutraceutical beverages contains bioactive compound which helps to promote and enhance health. Energy drinks mainly comprises of high percentage of caffeine, sugar, other energy enhancing ingredient such as, herbal extracts, B vitamins, and taurin. It was initially introduced as a dietary supplement but further its features was enhanced to provide the consumer with sustained energy, and to reduce physical and mental fatigue. For the consumers energy drinks are offered in the form of shots, in powder, ready-to-drink (RTD). Among all these form ready-to-drink is mostly consumed by the consumers.