Ranked by evidence
Best Vitamin K Supplements
The 6 highest-scoring vitamin k supplements in Formulate's catalog, ranked by the same automated rubric we apply to every product: ingredient dose, bioavailable form, label transparency, safety, and third-party testing. No sponsorships, no pay-to-play.
Scored by the Formulate Research Team · Last reviewed July 2026
- 1
Doctor's BestNatural Vitamin K2 MK-7 with MenaQ7, 100 mcg, 60 Veggie CapsStrongest on transparency (100/100).
95A - 2
ThorneVitamin K2A concentrated liquid form of an extensively studied form of vitamin K2 to help maintain bone mineral density* Vitamin K2 provides support for bone, heart, and blood vessel heal…
94A - 3
ThorneVitamin KHelps maintain bone mineral density and supports healthy blood vessels* Each capsule of Thorne’s Vitamin K formula provides 3 clinically studied forms of vitamin K – vitamin K1…
93A - 4
Doctor's BestNatural Vitamin K2 MK-7 with MenaQ7, 45 mcg, 60 Veggie CapsStrongest on transparency (100/100).
86A- - 5
Doctor's BestNatural Vitamin K2 MK-7 with MenaQ7, 45 mcg, 180 Veggie CapsStrongest on transparency (100/100).
86A- - 6
86A-
Frequently asked questions
What is the best vitamin k supplement?
Doctor's Best Natural Vitamin K2 MK-7 with MenaQ7, 100 mcg, 60 Veggie Caps is Formulate's highest-scoring vitamin k supplement at 95/100 (grade A). Strongest on transparency (100/100).
How does Formulate rank vitamin k supplements?
Each product is scored 0–100 by the same automated rubric. Clinical evidence, dose accuracy and bioavailable form carry the score; manufacturing, label transparency and safety are checked separately and can only cost points. Rankings reflect the formula on the label — not advertising or sponsorships.
How many vitamin k supplements were compared?
This ranking shows the top 6 vitamin k products Formulate has scored. Browse the full catalog for every product and its breakdown.
Best supplements by category
How these are ranked
Every vitamin k product is scored on dose accuracy, ingredient form, certifications, transparency, and third-party testing — the same rubric across the whole catalog. See the methodology page for the full breakdown, or browse every supplement.
Educational only. Rankings reflect product formulation quality, not personalized medical advice. Talk to a qualified healthcare provider before starting a new supplement, especially if you take medication.