Atherosclerosis doesn't happen when people have proper intakes of K2 which are required to "carboxylate", aka, activate all calcium binding proteins in the body either.The question is.. how much?
As an infant (the fastest rate of growth), LDL is about 30 mg/Dl. Across the animal kingdom, our mammalian cousins top out at 50-70 mg/Dl. Atherosclerosis in humans does not happen when LDL is <70 mg/Dl.
In fact, in one study after 6 weeks of K2 supplementation, arterial plaques were lessened by over 50%.
K2 is crucial for heart health and to prevent calcification as you age, especially since the US allows everything to be fortified with calcium even as the entire reason for initially doing so has proven to be 100% false, which was to try and prevent osteoporosis in the elderly. It not only DOESN'T prevent it, it actually makes it worse in many situations.
There is virtually NOONE in the US who lacks calcium. The calcium is there, it simply can't get to the right areas because there is nothing to transport it there. So it goes into the soft tissues and blood vessel walls instead.