most glycation in the body is not directly linked to sugar but to reactive compounds like methylglyoxal, which can arise from carbohydrate, fat, and even protein metabolism

see Chris Masterjohn's extensive work on this

are fat and protein trying to kill you too?

your body prefers sugar as a fuel, in fact even if you go on an extended fast and eat nothing, your body will make its own sugar to keep your blood glucose from dropping too low