Anything that you put into your body is going to be better absorbed by your body AFTER exercise. After exercise, the human body is starving and thirsting at much much higher levels than before exercise. By taking Miracle-Mineral-Supplement before exercise, you are going to ask the body to concentrate on both digesting and distributing Miracle-Mineral-Supplement throughout the body while simultaneously trying to work-out. It's like having the A/C on in your car and driving up a hill. I hope this helps.