Energy drinks are food products and are safe to consume. Some consumers may – due to their predisposition – react sensitively on ingredients contained in energy drinks, e.g. caffeine, sugar or vitamins. Some people are sensitive to caffeine and tend to react with headache, dizziness, insomnia or are restless. The ingredients contained in energy drinks are labelled on the can including the caffeine content so that consumers can make informed choices based on what they know is best for them