You might try MCT oil. Also, how high is your A1C? If there is insulin in your blood, you literally cannot metabolize fatty acids for energy. Forty dollars or so buys a blood glucose tester, and forty more buys a blood ketone tester. I recommend both if you’re going to do this.
Discussion
My Hba1c has never been above 33 mmol/mol, which is low (healthy). I don't measure my blood sugar with a glucose tester because it has never been a problem. I burn fat just fine: I fast and lose weight rapidly while feeling fine, never weak or tired.