DEAR DR. ROACH:I am a 76-year-old male in good health. I go to the gym three days a week, eat well, and fast one day a week. I have been reading about taking a tablespoon of olive oil at night as a remedy for all kinds of things such as digestion issues and arthritis. I tried it, and I swear that the first day after ingesting it, I felt less pain in the arthritis in my h...