Whether you're training for your first century or running your sixth marathon, it's essential to give your body the energy it needs for sustained effort. Rather than overloading your system with chalky or chewy alternatives, reach for a Science in Sport GO Isotonic Gel. A noticeably thinner consistency makes it easier for your body to absorb the available energy into your blood stream without needing extra water. The gel's light flavor profile won't overpower or leave a distracting aftertaste, leaving you free to concentrate on powering through to the end.