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    Ingredient guide · Ingredient reference

    Do multivitamins contain vitamin K? Check the individual label

    Some multivitamins include vitamin K, with different forms and quantities. The word multivitamin does not guarantee a specific K content.

    Read the evidence ↓

    Supplement Science Insights Editorial Team

    Published September 23, 2026

    The formula determines the answer

    NIH ODS notes that vitamin K is present in many multivitamin/mineral supplements. Its form may be K 1, described as phylloquinone or phytonadione, or a K 2 menaquinone such as MK-4 or MK-7. Products vary, so inspect the actual Supplement Facts panel rather than assuming every multivitamin contains the same amount. [1]

    Read micrograms and serving size together

    The declared vitamin K amount is usually expressed in micrograms. Check whether the serving is one tablet, two gummies or another quantity. The named form answers an identity question; the amount answers an intake question. A vitamin K Daily Value is not a special K 2 dose recommendation. [1]

    Why switching products can matter

    Imagine a person taking warfarin switches from a product without listed K to one supplying 60 mcg per daily serving. That changes vitamin K exposure. The treating team should know about the switch because consistent vitamin K intake matters with warfarin. A supplement marketed as general nutrition still counts in the intake history. [1]

    Hypothetical example — apply the distinction to the stated scenario
    Hypothetical panelDaily contribution at one stated serving
    Vitamin K not listedDo not assume an added K amount
    Vitamin K 60 mcg as K 160 mcg
    Vitamin K 60 mcg as MK-760 mcg vitamin K in a different form
    Do multivitamins contain vitamin K? Check the individual label — original article outline diagram
    Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

    Sources for this article

    1. Vitamin K - Health Professional Fact Sheet
      Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.