Seems the latest insights point primarily to "refined" carbohydrate based foods consumed together with (omega six rich) vegetable oils, as the deadly duo.
But for those of already insulin resistance, even the carbs from a carrot it a tater can become highly fattening.

With respect to centenarians, I wrote a blog post some time ago arguing why looking at those is poor science.

As for veganism and vegetarian diet. It is really interesting how many of the low carb, keto and carnivore/zerocarb crowd report turning to their new diet after their old diet started making them sic. Most often not the carbs, but still. For me, as it turns out , most likely, it was the MK4 that for some unexplained reason I seem unable to synthesize from K1 for myself. I think that is the whole issue, people respond different to different deficits. There is no such thing as a carb deficit, but as carbs come packaged in many complex-composition foods, it is important to realize that, like with vegetarians that came to regret their choice to cut out all meat, eggs and dairy, one of those high carb foods you are taking out of your diet might just contain that one micronutrient that is keeping disease at bay.