Inflammation is the latest cause of clogged arteries.
Supposedly eating sugar, starchy carbs, seed oils and trans fats causes it.
Processed foods are full of all that.
Increasing insulin sensitivity is key.
It's not easy to avoid those types of foods in today's society.
I don't each much direct sugar, almost no seed oils, and hardly any trans fats. So that's good.
I use only olive oil and pure avocado oil for cooking.
As for starchy carbs, barely eat pasta anymore, almost no bread outside of sprouted grain, but do mix in sweet potato and rice......but I keep those portions small when compared to the meat and veg
I'm also big on well sourced meats, grass fed, no hormone, etc......I know you don't believe in that, but I do.