Why Barley? Young barley leaves contain trace minerals that are vital to health. These are used by the body to activate enzymes, sustain cellular activity, and absorb and utilize other minerals. in Public bookmarkswith barley_capsulesbarley_leavesbarley_powderpure_barleysante_barley Note: Young barley leaves contain trace minerals that are vital to health. These are used by the body to activate enzymes, sustain cellular activity, and absorb and utilize other minerals.