all intelligent people eat Paleo / Keto / Carnivore

all athletes count calories

you really need to do both

PLUS exercise

the truth is the odds are against you. most of us will become diabetic, especially if it's in your family. if you're telling yourself that half assed effort like not eating bread or not putting sugar in your coffee will be enough to stave it off - you're lying to yourself.

avoiding diabetes as you get older requires a combination of knowledge and discipline - this is why most will fail.