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 83 of 95), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Vitamin DUSANA30 mcg
• Vitamin DNutrilite20 mcg
• Vitamin D + K 2000Moss Nutrition70 mcg
• Vitamin D + K 5000Moss Nutrition140 mcg
• Vitamin D + K Liquid with Peppermint OilMoss Nutrition63 mcg
• Vitamin D + K2Body Kitchen180 mcg
• Vitamin D + K2Nature's Craft120 mcg
• Vitamin D + K2Thorne200 mcg
• Vitamin D 5,000 IUAncient Nutrition90,000 mcg as transcribed, likely a slip
• Vitamin D 5000 and K-2 90Woodstock Vitamins90 mcg
• Vitamin D ComplexThorne FX · off the market200 mcg
• Vitamin D ComplexLife Time Fitness · off the market200 mcg
• Vitamin D ComplexAdaptogen Research525 mcg
• Vitamin D Complex with Vitamins A, E, K1 and K2Designs for Health525 mcg
• Vitamin D For KidsJoySpring25 mcg
• Vitamin D K2 & ZincAmen90 mcg
• Vitamin D plus KKlaire Labs · off the market100 mcg
• Vitamin D Supreme with Vitamin K1 and K2Designs for Health550 mcg
• Vitamin D Synergy with Vitamin K1Designs for Health200 mcg
• Vitamin D Ultra 10KDesigns for Health220 mcg
• Vitamin D with K2Isotonix45 mcg
• Vitamin D+K with Vitamin CDr. Clark Store225 mcg
• Vitamin D-3 & K-2GNC100 mcg
• Vitamin D-3 & K-2 1,000 IU/45 mcgNOW · off the market45 mcg
• Vitamin D-3 & K-2 Liposomal SprayNOW100 mcg
• Vitamin D-3 & K-2 Liposomal SprayLuckyVitamin100 mcg
• Vitamin D-3 25,000 IUMetabolic Maintenance45 mcg as transcribed, likely a slip
• Vitamin D-3 5000 IU & MK-7 180 mcgLuckyVitamin180 mcg
• Vitamin D-3 with Vitamin K-2 MenaQ7Metabolic Maintenance45 mcg
• Vitamin D/KHoltraCeuticals45 mcg
• Vitamin D/K2Thorne Research · off the market200 mcg
• Vitamin D/K2Thorne · off the market200 mcg
• Vitamin D/K2 LiquidAmy Myers MD · off the market200 mcg
• Vitamin D3Zemvelo200 mcg
• Vitamin D3Purity Labs · off the market200 mcg
• Vitamin D3 & K2The Vitamin Shoppe90 mcg
• Vitamin D3 & K2Natural Factors · off the market120 mcg
• Vitamin D3 & K2aSquared Nutrition75 mcg
• Vitamin D3 & K2Nature's Answer120 mcg
• Vitamin D3 & K2Bluebonnet100 mcg
• Vitamin D3 & K2Advanced Nutrition by Zahler100 mcg
• Vitamin D3 & K2 DropsLegendairy Milk5 mcg as transcribed, likely a slip
• Vitamin D3 & K2 Peach Apricot FlavorAdvanced Nutrition by Zahler120 mcg
• Vitamin D3 & K2 Raspberry FlavorBluebonnet EarthSweet Chewables100 mcg
• Vitamin D3 + K2Herbadiet90 mcg
• Vitamin D3 + K2SportsResearch100 mcg
• Vitamin D3 + K2Fresh Nutrition100 mcg
• Vitamin D3 + K2Seeking Health100 mcg
• Vitamin D3 + K2Solaray · off the market50 mcg
• Vitamin D3 + K2California Gold Nutrition200 mcg

Where next?

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