DEAR DR. ROACH: I’m a healthy 75-year-old male. I’m a bit frustrated after seeing my regular doctor for a checkup and receiving a call from his medical assistant that he is suggesting a low-fat, low-carb diet. I asked for more specific diet suggestions, as I admit I am nutritionally ignorant (my late wife always bought groceries and prepared meals for us). Other than beef and bread, I’m not even sure what a carbohydrate is. My LDL cholesterol is 152 mg/dL, […]