Vitamin K for Strong Bones & Arterial Health

Help Keep the Calcium in Your Bones—and Out of Your Arteries

As far as letter vitamins go, vitamin K is pretty special. For one, vitamin K is important to osteoblasts—the special kind of cells that keep your bones strong and healthy. And, it’s a champion of arterial health. But you have to get enough vitamin K in your diet to make a difference. This can be a problem, because vitamin K rich foods like cheese, eggs, dairy and even dark, leafy greens like spinach aren’t always on the menu. That’s why our vitamin K supplements offer clinically studied dosages of essential vitamin K.

4 Reasons to Take Vitamin K Supplements

  • Supports healthy bone density
  • Helps maintain healthy calcium balance
  • Encourages cardiovascular health
  • Easier (and sometimes healthier) than K-rich foods

Can’t find what you’re looking for?

Explore Bone Health Supplements

Our Recommendation

Super K

Vitamin K supplement with K1 and two forms of K2

90 softgels


Vitamin K—specifically, vitamin K2 in forms like menaquinone-4 and menaquinolone-7, is good for maintaining bone density and strength. And vitamin K also facilitates healthy arterial calcium balance by helping your body bind the mineral calcium to your bones, which keeps it out of your bloodstream.

Get to Know Vitamin K

The term “vitamin K” is somewhat of a misnomer. It should probably be “vitamins K”—plural. That’s because there’s vitamin K1 and vitamin K2. There’s also different forms of vitamin K2, called menaquinones, and there’s even sub-variants of those forms. If this sounds overwhelming, don’t worry: our vitamin K supplements offer different dosages and forms of vitamin K, depending upon your health needs.

Mega Vitamin K2—For Bone Density

Got bone density? You’ll need it—especially as you get older. That’s because the process that breaks down bone speeds up as a part of natural aging. Mega Vitamin K2 delivers 45,000 mcg of vitamin K2 as menaquinone-4: a mega-dose that’s been clinically studied to help maintain bone density.

See Mega Vitamin K2

Vitamin K + Calcium—For Comprehensive Bone Support

We know that vitamin K helps bind calcium to your bones. So shouldn’t you be able to get both calcium and vitamin K in the same supplement? Absolutely: we offer an entire line of bone-support calcium supplements we call Bone Restore. They’re available with or without vitamin K (and even chocolate!)

See Bone Restore with Vitamin K2

Super K—For Bone and Heart Health

As mentioned, there’s more than one kind of vitamin K, that come in different forms, which are even found in different foods. So how do you get enough of the right ones? You take Super K, a special vitamin K supplement with K1 (think leafy greens) and two kinds of K2 (eggs, cheese & poultry).

See Super K
Vitamin K Cream 1 oz - Life Extension

Topical Vitamin K—For Smooth Skin

Wait, topical vitamin K? Believe it or not, yes: vitamin K can even benefit the surface of your skin. Vitamin K lotion helps to minimize the appearance of blood vessels—you’ll know them as discolorations like redness or blotches—which helps support a more smooth, youthful complexion.

See Vitamin K Cream

Not everyone needs a stand-alone vitamin K supplement—or even has room in their daily regimen for one. We have you covered with vitamin K combos that make it easy to get your vitamin K, vitamin D, calcium…even iodine.

Related Products

What is vitamin K?

Vitamin K is an essential nutrient for optimal health, benefitting your heart and bones. Foods rich in vitamin K include spinach, kale, broccoli, lettuce, blueberries, figs, cheese, eggs and soybeans. However, even the healthiest diets don't provide all the vitamin K your body needs, so a high-quality supplement is important.

What does vitamin K do?

Without enough vitamin K, your bones wouldn't be quite O-"K!" That's because your body needs vitamin K to produce prothrombin, an essential protein that helps support bone metabolism. Vitamin K also keeps bones strong by supporting calcium metabolism and promoting overall bone density.

How much vitamin K should I take?

Before incorporating a vitamin K supplement into your wellness routine, first speak with your doctor about your individual health goals and also consider taking a vitamin K1 blood test to assess your current levels. The recommended intake for vitamin K depends on your age and gender, but an all-in-one, supercharged vitamin K supplement delivers 2,000 mcg of vitamin K1, 1,500 mcg of K2 as well as trace amounts of MK-6, MK-7 and MK-9. No matter what vitamin K supplement you choose, make sure to follow the dosage on the bottle and not take more than what is recommended.



Answer a few questions to get custom supplement recommendations.

Life Extension - Why We Do It?

The Best Supplements Science Can Offer

When putting something in your body, you should be confident that you’re getting the nutritional benefits your body deserves. We've been delivering the highest-quality products—backed by science and formulated with the finest ingredients—for over 40 years.

What Matters to You, Matters to Us

We're committed to empowering you to live a healthier life. Whether it’s finding sustainable partners for our ingredients or funding the latest anti-aging research, we're all about your health & wellness.

Highly Recommended

98% of our customers recommend us to family and friends. We're very proud of that because our loved ones matter to us—and we're willing to bet you feel the same way.

Product Transparency

40 years of research dedicated to bringing you premium, scientifically-validated formulations.