I got slapped with the diabetes diagnosis when being tested after a night of BBQ and beer. Blood sugar was crazy high in the 300's. A1C was like 14. I cut out all carbs and 3 months later I was in pre diabetes range. Now I just stopped eating gummis and drinking soda, and I fluctuate low pre-diabetes to normal. Current A1C is 5.7. I'm 6'1 207lbs for reference.

Moral of the story, its diet.