Sis go energy 50g lemon re fuel the sis go energy 50g lemon re fuel is ideal for carbohydrate loading longer workouts or fast refueling this energy drink mix is versatile enough to mix at high energy concentrates to give you lots of energy per mouthful drink before exercise for easy low bulk carb loading and during your workout for fast sustained energy sis go energy can also be used immediately after exercise to re fuel low bulk carb drink ideal for carbohydrate loading longer