When looking at the deltas between how you were when you started low carb and how you are today, I can't think of any physician who would not be encouraged by what you have accomplished in that time period in terms of embracing better health. To second guess and recommend a change in how you eat today would seem to me to be based on popular nutritional mythology rather than the solid results you've achieved in your N=1 experiments and course corrections. Whether it might come from your PCP or cardiologist, I'd be suspicious of any recommendation to make radical changes in your current WOE. The statin recommendations are certainly driven by the current standards of care and reinforced by concern over medical liability. In other words, the vast majority of today's doctors will make the same recommendation. I understand that this is an important decision you must consider, and my thoughts are with you on this. It could be the same for any one of us at any time.