Clif Bars have whole ingredients you can see and taste, such as rolled oats, fruits and nuts. Each bar contains B6 and B12 which contribute to the normal release of energy for use in the body. The bars are also a source of protein and fibre. Clif Bars are best eaten about one to three hours before exercise along with water to prevent hunger and supply energy to working muscles. During prolonged, lower intensity exercise Clif Bars can be eaten during activity to help satiate hunger and meet carbohydrate demands. CLIF Bars can also be eaten as a snack between meals or during a long, busy day to help sustain energy. This bar is flavoured with delicicous blueberries!