Joints and bones

Vitamin D with K2

Also called: D3 K2

A combination of vitamins D3 and K2.

Why people take it
Bones, arteries.
What the evidence says
See the vitamin D and K2 entries.
How it is usually taken
Usually 1,000 to 2,000 IU D3 with 90 to 200 mcg K2 (MK-7) a day.
Be careful
Not with warfarin unless your doctor agrees.
Medicines it can interact with
Vitamin K2 can reduce the effect of warfarin; ask your doctor first.

Other joints and bones

ChondroitinMSMHyaluronic acidUndenatured type II collagenEggshell membraneAvocado soybean unsaponifiablesCalcium with vitamin D

Common questions

What is Vitamin D with K2?

A combination of vitamins D3 and K2.

Why do people take Vitamin D with K2?

Bones, arteries.

Does Vitamin D with K2 work?

See the vitamin D and K2 entries.

How much Vitamin D with K2 do people take?

Usually 1,000 to 2,000 IU D3 with 90 to 200 mcg K2 (MK-7) a day.

Is Vitamin D with K2 safe?

Not with warfarin unless your doctor agrees.

Does Vitamin D with K2 interact with medicines?

Vitamin K2 can reduce the effect of warfarin; ask your doctor first.

Sources and further reading

Last reviewed 31 October 2026. Written by Satya Babu.

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For information only, not medical advice. Supplements are not medicines: they are not tested and approved like drugs before they are sold, and they can interact with medicines. Talk to your doctor or pharmacist before you start one, especially if you are pregnant or breastfeeding, take regular medicines, or have kidney, liver or heart disease.