vitamin

Vitamin K supplements

Half of the 4,607 vitamin K supplements in the NIH label database that print an amount list 80 mcg or less per serving; the middle half list 35 mcg to 100 mcg (DSLD version 9.4.0, January 2026). The 178 products whose only supplement ingredient is vitamin K list a median of 100 mcg.

How much vitamin K do supplements contain?

The median product lists 80 mcg per serving. One in ten lists 20 mcg or less, one in ten 180 mcg or more. The amount printed most often is 80 mcg (692 products).

How do the amounts compare with the Daily Value and the upper limit?

The FDA Daily Value for vitamin K is 120 mcg (adults and children 4 and older). The median product gives 67% of it per serving; the 90th percentile 150%.

The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.

Which forms of vitamin K do labels name?

Vitamin K1 (phylloquinone) is the form named most often: 1,879 of the 4,722 vitamin K products (40%), ahead of vitamin K2 as MK-7 (1,376, 29%) and vitamin K2 as MK-4 (277, 6%). A product naming two forms counts in both; the table below gives every form.

• Vitamin K1 (phylloquinone)
• Vitamin K2 as MK-7
• Vitamin K2 as MK-4

Which products list the most vitamin K?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• Vitamin K2 100 mcgBronson100,000 mcg
• Peak K2AOR Advanced Orthomolecular Research Advanced45,000 mcg
• Bone Restore Elite with Super Potent K2Life Extension45,000 mcg
• Mega Vitamin K2 45,000 mcgLife Extension45,000 mcg
• Vitamin K2Thorne15,000 mcg
• Essential SoftgelBlueprint Bryan Johnson7,100 mcg
• Vitamin KThorne6,090 mcg
• Restore ADEK2Activator Essentials5,000 mcg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 77.8 mcg; those entered in 2025, 81 mcg.

In which products and brands?

Brands listing it most: Nature's Way (130), Nature's Plus (62), New Chapter (61), Douglas Laboratories (58), Amazing Grass (54), MegaFood (46), The Vitamin Shoppe (41), GNC Women's Ultra Mega (41), Garden of Life (40), Nature Made (40).

Every product listing vitamin K

4,722 products, A to Z by name (page 17 of 95), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Centrum VitaMints WintergreenCentrum65 mcg
• Centrum WomenCentrum50 mcg
• Centrum Women Under 50Centrum50 mcg
• Centrum Women's MultiCentrum50 mcg
• CenturySafeway Care25 mcg
• Century AdultSmart Sense30 mcg
• Century AdultsSignature Care25 mcg
• Century CompleteTop Care25 mcg
• Century Complete Multivitamin/Multimineral SupplementEqualine25 mcg
• Century FormulaSwanson Premium Brand · off the market25 mcg
• Century Formula Without IronSwanson Premium Brand · off the market25 mcg
• Century MatureSmart Sense30 mcg
• Century MatureGoodSense30 mcg
• Century MatureSignature Care30 mcg
• Century MatureMeijer30 mcg
• Century menSignature Care60 mcg
• Century Men'sEqualine60 mcg
• Century Senior 50+ FormulaSafeway Care30 mcg
• Century Senior Ultimate Men'sTop Care60 mcg
• Century Ultimate Men'sTop Care60 mcg
• Century Ultimate Men's Senior FormulaSafeway Care60 mcg
• Century Ultimate Women'sTop Care50 mcg
• Century WomenGoodSense50 mcg
• Century Women's Complete 50+TopCare Health50 mcg
• CeroviteRugby25 mcg
• Cerovite Jr.Rugby10 mcg
• Cerovite SeniorRugby30 mcg
• CertaVite SeniorMajor30 mcg
• CertaVite with AntioxidantsMajor25 mcg
• Certified Organic GreensVSN Vital Strength Nutrition · off the market20 mcg
• Certified Vegan K2 500 mcg Natural Strawberry FlavorCountry Life500 mcg
• Chewable 50+ Men Multivitamin + Supporting Herbs Wild BerrySuper Nutrition SimplyOne · off the market80 mcg
• Chewable 50+ Women Multivitamin + Supporting Herbs Wild BerrySuper Nutrition SimplyOne80 mcg
• Chewable Advanced Multi EA Mixed FruitBariatric Advantage Innovations150 mcg
• Chewable Advanced Multi EA StarwberryBariatric Advantage Innovations300 mcg
• Chewable Advanced Multi EA StrawberryBariatric Advantage Innovations150 mcg
• Chewable Advanced Multi EA without Iron Mixed FruitBariatric Advantage Innovations300 mcg
• Chewable Calcium Citrate 500 mg Calcium 500 IU Vitamin D3 ChocolateBariatric Advantage60 mcg
• Chewable Calcium Citrate 500 mg Calcium 500 IU Vitamin D3 CinnamonBariatric Advantage60 mcg
• Chewable Calcium Citrate 500 mg Calcium 500 IU Vitamin D3 Wild CherryBariatric Advantage80 mcg
• Chewable Coral Calcium AdvantageIndiana Botanic Gardens75 mcg
• Chewable High ADEK with Iron Tropical FruitBariatric Advantage200,000 mcg as transcribed, likely a slip
• Chewable Kids Might Multi Tasty Fruit FlavorHealth Products Distributors · off the market15 mcg
• Chewable Kids Mighty-Multi Tasty Fruit Flavor!Health Products Distributors, Inc.15 mcg
• Chewable Mega Teen Berry FlavorGNC Teens · off the market10 mcg
• Chewable Men Multivitamin + Supporting Herbs Natural Wild BerrySuper Nutrition SimplyOne · off the market80 mcg
• Chewable Multi-Vitamin & Minerals Jungle BerryNatural Factors Big Friends2.5 mcg
• Chewable Multi-Vitamin with Probiotics & Enzymes for ChildrenVitables40 mcg
• Chewable MultivitaminWell At Walgreens55 mcg
• Chewable Perfect Kids Wild BerrySuper Nutrition SimplyOne80 mcg

Where next?

• Check an amount of vitamin K
• Labels above the upper limit
• All ingredients