← All ingredients

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

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

Dr. Lesher, ND

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.

Book a consult now