[lithocarpus]

I don't think it's carbs as such necessarily, but the glycemic index of the foods and their addictive qualities - i.e. how easy it is to way overdo the glucose spiking.

Yes, if you cut the carbs the problem is solved, but there are different kinds of carbs and some kinds in moderation can be eaten regularly without causing big glucose spikes and metabolic disease.

Personally I go for low carb to make it easier, but I still eat limited fruit and starchy vegetables and rice and beans. (Some kinds of fruit do spike glucose and I need to be careful with.)