I eat low carb because diabetes runs in my family. And while my younger brother has it, I do not.

I could eat badly and never get it... but my A1C had been edging up, too.

Did I reverse "pre-diabetes"? Well, I returned to excellent blood sugar control.

I've read about elite athletes with Type II diabetes. Like in Gary Taubes book, the Case Against Sugar; it will get most people, eventually, if they eat in a way which seems to encourage it.