Eat the fat, ditch the carbs!
Avoid carbs and sugars both as fruit and candy, bread, pasta and your A1C1 will drop. If you can follow that restrictive a diet. 1 to much protien causes joint pain, 2 don’t have GI diseases caused by osteoarthritis drugs. 3 eat in moderation all food groups.
I have Gastropresis slow digestion from OA drugs, so it pushes me to Type 2 Diabetes. Your diet is limited to what you actually digest. If it is left in your stool, you have to eliminate it. Leads to Colon issues too as you have no to little fiber in your diet.