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This Changes Everything About Vitamin K2 & Clogged Arteries (New Study)

In a Nutshell

A 2-year study found that 360 mcg daily of vitamin K2 (MK7) slowed arterial calcium buildup by about 30% in people with existing heart disease, though it did not stop or reverse it. Vitamin K2 works best as a metabolic add-on that improves insulin sensitivity and reduces inflammation, not as a standalone fix or a way to chase lower calcium scores. The real driver of risk is lifestyle: diet, exercise, sleep, and metabolic health determine whether calcification is dangerous and unstable or protective and stabilizing.

AI-Generated Notes

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If you're in your 60s or 70s, and even some people in their 50s, plaque and calcium are almost certainly building inside your arteries right now. This buildup doesn't announce itself. You don't feel it. It builds quietly for years. The dangerous kind, the plaque without calcium, can rupture without warning. That's the heart attack that nobody saw coming.

There's a 50-cent vitamin, K2, that recent evidence shows can slow artery calcium buildup by nearly a third. The calcification in your arteries is not one simple thing. There's mostly two kinds, and they're nearly opposites, and one of them may actually be protecting you. A low calcium score isn't automatically good news, and a high one isn't automatically bad.

Vitamin K2 is a fat-soluble vitamin. Your body uses it to manage calcium, where the calcium goes and where it doesn't. Vitamin K is all about blood clotting. Vitamin K2 isn't at all the same. It's about calcium. When it was discovered, it looked very much like vitamin K1. That's why you see it as K2. It's a historical artifact.

K2 comes in a few forms, but the one you'll see on supplement labels, there's one of two that you'll see, MK4 and MK7. Both are good. MK7 is usually considered by most people to be the one with more evidence behind it for healing arteries. It's because it stays in your bloodstream longer and does steadier work. The increased number of studies on MK7 is the reason we're talking about it in the study today.

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