Constantly struggling for energy towards the end of your ride? Or even before? If you're getting enough sleep, and eating enough, but still becoming weary on your ride (or even if you're not), you might want to consider an energy powder, and these ones from GU are perfect. They have been created solely with athletes in mind, and utilise non-competing energy pathways to combat fatigue without upsetting your stomach. GU use maltodextrin and fructose with are rapidly absorbing, energy rich carbohydrates to bulk up their mix and keep you stimulated. As well as this, GU have thrown a 250mg serving of sodium into the mix. Sodium is the primary electrolyte lost when you sweat, and is essential in aiding hydration as it maintains water balance. Each 100 calorie serving (418kj) gives you a neat little package of energy rich carbohydrates, sodium and potassium. These GU mixes are also caffeine free for those conscious, and are flavoured naturally.