Why Vitamin D3 and K2 Work Better Together
Vitamin D3 helps your body absorb calcium. Vitamin K2 helps direct that calcium to your bones, not your arteries. Here's the simple science of why this pairing makes sense.
In the UK, around one in six adults has low vitamin D status, and the NHS recommends a daily supplement during autumn and winter for everyone. Vitamin D3 is the form your body uses most efficiently. But supplementing D3 on its own misses an important second piece — vitamin K2.
What each vitamin actually does
Vitamin D contributes to the normal absorption of calcium in your gut. It also contributes to the maintenance of normal bones, muscle function, teeth, and immune system function.
Vitamin K contributes to normal blood clotting and the maintenance of normal bones. It does this in part by activating proteins that bind calcium where it's needed.
Why the pairing makes sense
When you take vitamin D3, you absorb more calcium. Vitamin K2 (specifically the MK-7 form) helps the body direct calcium to your bones rather than letting it accumulate in soft tissue. Taking them together is a way of supporting the full picture — absorption and use — rather than just absorption alone.
This is why most premium vitamin D supplements designed for adult wellness pair D3 with K2 MK-7. Our VitaEdge Vitamin D3 + K2 contains 75 µg (3000 IU) of D3 with 100 µg of K2 MK-7 per capsule.
Important to know
If you are on blood-thinning medication such as warfarin, talk to your doctor before taking any K2 supplement — vitamin K can interact with these medications.
Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended daily dose.