I've used creatine for years and personally, I've found that it really helps with strength and endurance while in the gym. Having said that, I don't believe I'll be using it (or other similar supplements) from here on out. As I've started to learn more about the benefit of whole foods along with the negative impact that many chemicals and supplement manufacturing processes can have on your body long-term, I've made a decision to eliminate them from my diet plan. Mike