Strong Bones Need More Than Calcium: The Role of Vitamin K2

For years, the advice around bone health has been fairly simple: get enough calcium and vitamin D.

And they’re certainly important. Calcium is one of the main building blocks of our bones, while vitamin D helps our body absorb calcium from the food we eat.

But that’s only part of the story.

Our bones are living tissue, constantly being broken down and rebuilt. Keeping them healthy involves several nutrients working together, including calcium, vitamin D, magnesium and vitamin K.

And vitamin K2 is one that doesn’t always get the attention it deserves.

It’s not just about getting calcium

We tend to think that if we eat plenty of calcium-rich foods, we’ve taken care of our bones.

But our body still has to absorb that calcium and use it.

A simple way to think about it is:

Calcium provides the building material.
Vitamin D helps us absorb it.
Magnesium supports bone formation and normal vitamin D metabolism.
Vitamin K supports the proteins involved in maintaining normal bone.

So bone health isn’t really about one superstar nutrient. It’s about teamwork.

Where does magnesium fit in?

Magnesium is sometimes forgotten in conversations about bones, but around 50–60% of the magnesium in our body is actually found in bone.

It contributes to the structural development of bone and is involved in the activity of the cells that continually build and remodel it. Magnesium also interacts with vitamin D and the systems that regulate calcium in the body.

That’s another reason why simply taking more calcium isn’t necessarily the whole answer. A varied diet that supplies the nutrients involved in bone health is much more important than focusing on a single mineral.

Good sources of magnesium include nuts, seeds, whole grains, beans, lentils and leafy green vegetables.

And what does Vitamin K2 do?

Vitamin K2 helps our body use calcium as part of the normal process of maintaining healthy bones.

It activates proteins involved in binding calcium within the bone, which is why K2 is sometimes described as helping to “guide” calcium to where it is needed.

You may also have heard that K2 helps keep calcium out of the arteries. There is some interesting research around this, but it is still developing, so it’s better not to think of K2 as a way of preventing calcium build-up in the arteries.

What we do know is much simpler: vitamin K contributes to the maintenance of normal bones, making it another important piece of the bone-health picture

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So what exactly is Vitamin K2?

Vitamin K isn’t just one nutrient.

Vitamin K1 is found mainly in green leafy vegetables and is perhaps best known for its role in normal blood clotting.

Vitamin K2 is the name given to a family of compounds called menaquinones. These include MK-7, a form commonly used in supplements. K2 can also be found naturally in certain fermented and animal-derived foods.

Although K1 and K2 are part of the same vitamin family, their sources and behaviour in the body differ.

Why does all this matter in midlife?

Bone is constantly being renewed throughout our lives. But as we get older, we gradually start losing more bone than we build.

For women, this becomes particularly important around menopause. As oestrogen levels fall, bone loss can accelerate.

That’s why midlife is a good time to think about bone health — not with fear, but as another part of looking after ourselves for the years ahead.

And nutrition is only one part of it.

Regular resistance and weight-bearing exercise are hugely important too. So are adequate protein, a varied diet, avoiding smoking and keeping alcohol within recommended limits.

Those strength-training sessions aren’t only about maintaining muscle. Your bones benefit from being challenged too.

Think bigger than calcium

Perhaps the most useful message is simply this:

Strong bones aren’t built by calcium alone.

Calcium matters. Vitamin D matters. Magnesium matters. Vitamin K matters. Protein matters. And movement matters.

Our bodies don’t use nutrients in isolation, so it makes sense that our approach to nutrition shouldn’t treat them that way either.

It’s much less about finding one “miracle” supplement and much more about giving our bodies the different things they need to do their job.

Introducing Yuvité Vitamin K2 MK-7

This bigger-picture approach to wellbeing is behind the latest addition to the Yuvité range.

Yuvité Vitamin K2 MK-7 provides 200 μg of vitamin K2 per capsule, with one capsule a day and 60 servings per bottle.

A simple addition to your daily routine, designed to complement a varied diet and healthy lifestyle.

Coming soon.

Food supplements should not be used as a substitute for a varied, balanced diet and healthy lifestyle. If you take anticoagulant medication such as warfarin, speak to your doctor or pharmacist before taking a vitamin K supplement.