Elemental007 there is a simple answer, its called carbohydrates. You will want to experiment with when and how much to take. Pick up some Carbo Fuel. Start out with about 50 grams before aerobics and maybe a few sips during. Try a couple of drinks through out the day. But you have to make sure you are active, because adding carbs for energy and not burning them through activity will lead weight gain. And its safe. But the ECA stack when taken correctly is very safe and extremely effective.