energy drink

An energy drink is a type of non-alcoholic psychoactive functional beverage containing stimulant compounds, usually caffeine (at a higher concentration than ordinary soft drinks) and taurine, which is marketed as reducing tiredness and improving performance and concentration (marketed as "energy", but distinct from food energy). They may or may not be carbonated and may also contain sugar, as well as other sweeteners, or herbal extracts, among numerous other possible ingredients. Energy drinks are different from sugar-sweetened beverages. While both energy drinks and sugar-sweetened beverages typically contain high levels of sugar, energy drinks include stimulants like caffeine and taurine and are marketed for energy, and sugar-sweetened beverages like sodas and fruit juices usually are not.

They are a subset of the larger group of energy products, which includes bars and gels, and are distinct from sports drinks, which are advertised to enhance sports performance. There are many brands and types in this drink category.