Anyone who has decent belief in the scientific principle (not herbal wacko science based on someone's second cousin in Alaska....the tumor disappeared, yada, yada ).... I digress... anyone have an educated opinion on L-arginine (just an amino acid) and CoQ 10 or any other supplement (besides multivitamin) that is worth looking into for a fairly serious rider - about 100 miles/week. A healthy doc once told me at a minimum to take L-arginine, Co Q and maybe some vit E.... riding, sweating and wondering in Texas. Thanks!