IS THERE ANYTHING OTHER THAN CAFFINE THAT ANYONE TAKES AS A SUPPLEMENT FOR CYCLING. OTHER THAN "EPO" AND ALL THE REAL BAD STUFF I WAS WONDERING IS THERE ANYTHING YOU CAN GET FROM THE HEALTH FOOD STORE OR CHEMIST THAT CAN INCREASE THE OXYGEN IN THE BLOOD OR INCREASE MUSCLE OUTPUT ? MAYBE SOME TYPE OF HERBAL FORMULA OR CHINESE STUFF? I THINK EVERYONE USES ELECTROLITE FORMULAS AND ENERGY BARS, BUT WAS ELSE IS OUT THERE?