Just like vitamin D, CoQ10 is important for athletes or even regular gym-goers. It may also increase muscle power output and decrease fatigue during repeated bouts of high-intensity exercise. Besides, Researchers report that CoQ10 may have significant benefits for people with cardiovascular disease (CVD), from reducing risk for repeat heart attacks and improving outcomes in patients with heart failure to lowering blood pressure and helping combat side effects of cholesterol-lowering statins.