A form of vitamin K
Vitamin K2 as MK-4 supplements
277 vitamin K products in the NIH label database list vitamin K as vitamin K2 as MK-4 (6% of the 4,722 vitamin K products); their median is 100 mcg of vitamin K per serving, against 80 mcg across all vitamin K products (DSLD version 9.4.0, January 2026).
How does vitamin K2 as MK-4 compare with the other forms?
The median amount of vitamin K per serving in products naming each form; the count in brackets. The amount is the vitamin K the label gives, as printed.
Median vitamin K per serving by form
Source: Supplement Facts rows and their forms, NIH ODS Dietary Supplement Label Database version 9.4.0, current labels.
- Products
- 277174 on the market
- Median vitamin K per serving
- 100 mcgall vitamin K products: 80 mcg
- Share of vitamin K products
- 6%277 of 4,722
What else do these products contain?
| Ingredient | Share of these products | Median here | Median, all products |
|---|---|---|---|
| Vitamin D | 82% | 25 mcg | 15 mcg |
| Vitamin C | 59% | 250 mg | 100 mg |
| Vitamin A | 58% | 5,000 IU | 4,000 IU |
| Zinc | 58% | 15 mg | 11 mg |
| Magnesium | 58% | 100 mg | 86 mg |
| Vitamin E | 57% | 60 IU | 30 IU |
| Manganese | 57% | 2.1 mg | 2 mg |
| Folate | 56% | 400 mcg | 400 mcg |
| Calcium | 56% | 121 mg | 115 mg |
| Selenium | 56% | 70 mcg | 55 mcg |
Which products are they?
60 of the 277 (on-market products first, the newest label first), ordered by the amount of vitamin K per serving, largest first; an amount that looks like a slip or a compound's weight comes last, marked.
- Bone Restore Elite with Super Potent K2Life Extension45,000 mcg
- Essential SoftgelBlueprint Bryan Johnson7,100 mcg
- Vitamin K2 MK-4 (Menatetrenone) 5 mgCarlson5,000 mcg
- Full Spectrum Vitamin KAllergy Research Group4,050 mcg
- A-D-K Vitamins+Codeage2,800 mcg
- Once-Daily Health BoosterLife Extension2,600 mcg
- K CompleteCarlson2,045 mcg
- Vitamin K ComplexWellness Resources1,600 mcg
- Vitamin D3 + K2InnovixLabs600 mcg
- Full Spectrum Vitamin K2InnovixLabs600 mcg
- Vegan Vitamin K2NatureWise600 mcg
- StemImmuneStemFoods Holistics600 mcg
- Vitamin K Triple PlayFuturebiotics550 mcg
- Vegan K2 Complex 500 mcg Strawberry FlavorCountry Life500 mcg
- Certified Vegan K2 500 mcg Natural Strawberry FlavorCountry Life500 mcg
- K2 MK-4 500 mcgRite Aid Pharmacy500 mcg
- Basic Nutrients 2/DayThorne400 mcg
- Multi-ADEKCelebrate325 mcg
- Mutli-ADEKCelebrate325 mcg
- Raw K-ComplexGarden of Life Vitamin Code230 mcg
- Multivitamin Performance Elite MaxCodeage225 mcg
- Multivitamin Recovery Elite MaxCodeage225 mcg
- A.m.Thorne200 mcg
- Multi-Vitamin Elite P.M.Thorne200 mcg
- P.m.Thorne200 mcg
- Multi-Vitamin Elite A.M.Thorne200 mcg
- D3+k2MDLogic200 mcg
- Multi-XtraXtendlife180 mcg
- WomenGarden of Life Vitamin Code176 mcg
- Kids Cherry Berry FlavorGarden of Life Vitamin Code140 mcg
- Bone ComplexPrimeGENIX120 mcg
- Vitamins D3 2500 IU (62.5 mcg) & K2 120 mcgNaturesPlus120 mcg
- Vegan D3 125 mcg + K2 100 mcgCountry Life100 mcg
- Gold Liquid Delicious Tropical Fruit FlavorNaturesPlus Source of Life100 mcg
- Vitamin D3 & K2Advanced Nutrition by Zahler100 mcg
- Vitamin K-2 100 mcgNOW100 mcg
- K2 + D3Mason Natural100 mcg
- K2 100 mcgMason Natural100 mcg
- Prenatal AdvantageLife Extension90 mcg
- One Daily Superfood Multi-Vitamin No IronParadise Earth's Blend80 mcg
- D3-K2 LipoSprayEnergetix80 mcg
- One Daily Superfood Multi-Vitamin with IronParadise Earth's Blend80 mcg
- Mini-Tabs No IronNaturesPlus Source of Life80 mcg
- Women's MultiNaturesPlus AgeLoss80 mcg
- Adult's Chewable Delicious Apple CinnamonNaturesPlus Source of Life80 mcg
- Multi-Vitamin & Mineral Mini-Tabs No IronNaturesPlus Source of Life80 mcg
- Royal Maca Bone & Hormone SupportWhole World Botanicals78 mcg
- Vitamin D3 + K2 DropsSeeking Health50 mcg
- AnaviteGaspari Nutrition45 mcg
- Anavite XTGaspari Nutrition45 mcg
- Multivitamin Liquid Gold Tropical Berry FlavorNaturesPlus Animal Parade40 mcg
- Multivitamin GoldNaturesPlus Animal Parade40 mcg
- Vitamin D3 + K2Super Nutrition SimplyOne40 mcg
- Vitamin DUSANA30 mcg
- Doc's Best Multivitamin PlusDr. Ron's Ultra-Pure17 mcg
- Oceans 3 Healthy HormonesGarden of Life15 mcg
- Oceans 3 Better BrainGarden of Life57.5 mcg (possible slip)
- Bone CareHerbs SRA20,000 mcg (possible slip)
- Osteo-Knbi22,500 mcg (possible slip)
- Osteo-K Minisnbi22,500 mcg (possible slip)
Source: NIH ODS Dietary Supplement Label Database version 9.4.0; the form each label names for its row. Daily Values: the FDA's Daily Value page.
Which brands make them?
Nature's Plus (29), Emerald Labs (15), Life Extension (11), Natures Plus Source of Life (11), Thorne (10), NaturesPlus (10), Garden of Life Vitamin Code (8), Natures Plus Source of Life Animal Parade (5), Carlson (5), EXOS Performance Nutrition (5).