SarahG - Calcium pyruvate did reduce my cholesterol too, and improved my aerobic endurance but did not do anything obvious for my energy levels or muscle mass.
In fact, after losing 25 pounds I've noticed a pretty big change in my muscle mass. It may be due to my age (I'm no spring chicken) and might just mean I've got to ramp up the workouts with weights in order to get that leaner, meaner body back.
I'm not really sure about taking Creatine or DHA with this supplement. What will that do to the pyruvate oxidation process — just increase endurance?