Gu energy gel this gu energy gel has been engineered to give you a boost for your sporting events energy gel take 5 minutes before then every 45 minutes hydrate along the way easy to digest long lasting energy nutrition lemon sublime energy 418kj 100 kcal calories 100 fats 0g saturates 0g carbohydrates 22g sugar 6g protein 0g salt 138mg potassium 35mg caffeine 0mg l leucin 385mg l valin 50mg l isoleucin 15mg