Energy bars are supplemental bars containing cereals and other high energy foods targeted at people that require quick energy but do not have time for a meal. They are different from energy drinks, which contain caffeine, whereas bars provide food energy.
It is widely recognised that individuals should seek out low glycemic products that have a slow release of energy over a longer period of time.
Truly effective energy bars need to provide fast-acting carbohydrates to facilitate ultra quick energy delivery. They also need a generous glycemic content to help ensure that a body is properly fuelled when it needs it most.
The purpose of a energy bar is to remedy fatigue and improve concentration at vital times.