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Vitamin K2
Also called: Menaquinone (MK-7, MK-4)
Helps direct calcium into bones and teeth rather than arteries. Often paired with vitamin D3.
Commonly used for
- Bone health
- Pairing with higher-dose vitamin D
- Heart and artery health
Found naturally in
- Natto (fermented soybeans)
- Hard and aged cheeses
- Egg yolks
Label red flags
- Says 'vitamin K2' without naming MK-7 or MK-4
Check with a provider
- Taking warfarin or another vitamin K antagonist. Avoid K2 unless your prescriber approves.
- A clotting disorder
Supplements that contain it
Brand nameProduct nameD3 + K2 combinationsComing soon
Brand nameProduct nameBone support formulasComing soon
Brand nameProduct nameSome multivitaminsComing soon
Brand nameProduct nameD3 + K2 combinationsComing soon
Brand nameProduct nameBone support formulasComing soon
Brand nameProduct nameSome multivitaminsComing soon
Parts of the body it affects
Explore what each area does and the conditions that can affect it.
Illustrations: Servier Medical Art, CC BY 4.0

Wondering if your symptoms fit a pattern?
Dr. Lesher is a naturopathic doctor who specializes in women's autoimmune and chronic conditions. Since 2020, she has helped more than 900 patients overcome and heal from their conditions.
