I mentioned to my doc (who had my latest blood tests in hand) that I'd been taking fish oil, but stopped when I ran out. She said "Don't stop!" I take a statin and felt miserable--physically weak, no energy-- until I read up on co-enzyme Q10 (AKA 'ubiquinone'), and started taking that. I believe that CoQ10 probably saved my life, or at least gave me a chance at a reasonably long one.