I diagnosed Diabetes with 7.4hba1c. And my fasting blood sugar level keep in a rang 6-7. 6.5 is often. No matter what exercise I do how I low carb intake. It never get improve my fasting blood sugar. One month ago. I start to take some supplement. Black garlic. And drink apple cider vinegar after meal. My fasting blood sugar start to get low in 5.3. I don’t know which thing works for it. But u can try.