Best Vitamin K Supplements (2026)

Ranked by safety score and evidence coverage from 0 independent research sources

363 Products Analyzed

0 Research Sources

98 Avg Safety Score

100% Evidence-Backed

What the Research Says

The provided research focuses on the clinical application of Vitamin K antagonists (VKAs) as anticoagulants for various thromboembolic conditions. The evidence primarily compares the efficacy of VKAs against newer agents, such as direct factor Xa inhibitors and direct thrombin inhibitors, in preventing or treating blood clots.

Venous Thromboembolism (VTE) following surgery: moderate Atrial Fibrillation: strong Antiphospholipid Syndrome: moderate Cancer-related VTE: moderate

AI-generated summary based on 0 research sources. See methodology.

Top-Ranked Vitamin K Products

Products ranked by safety score (0–100), then evidence coverage. Higher is better.

#	Product	Safety	Evidence	Form
1	Vitamin K-2 GNC Preventive Nutrition	100	100%	Softgel Capsule
2	Vitamin K 100 mcg Vitamin World	100	100%	Tablet or Pill
3	Bio-K-Mulsion Biotics Research Corporation	100	100%	Liquid
4	Vitamin D Synergy with Vitamin K1 Designs for Health	100	100%	Capsule
5	Vitamin D Synergy with Vitamin K1 Designs for Health	100	100%	Capsule
6	Natural Vitamin K2 45 mcg Doctor's Best	100	100%	Capsule
7	Vitamin K-2 NewtonEverett	100	100%	Softgel Capsule
8	K 100 mcg Thompson	100	100%	Capsule
9	Vitamin K2 Higher Nature	100	100%	Tablet or Pill
10	Vitamin K-1 The Vitamin Shoppe	100	100%	Tablet or Pill
11	Vitamin K2 300 mcg MK-7 Innerzyme	100	100%	Capsule
12	Vitamin K1 100 mcg The Vitamin Shoppe	100	100%	Tablet or Pill
13	Low-Dose Vitamin K2 45 mcg Life Extension	100	100%	Softgel Capsule
14	Natural Vitamin K-2 Bioactive Form Vitamin World	100	100%	Softgel Capsule
15	Vitamin K1 100 mcg Country Life	100	100%	Tablet or Pill
16	Vitamin K 100 mcg Radiance Platinum	100	100%	Tablet or Pill
17	Vitamin K2 50 mcg Vitacost	100	100%	Softgel Capsule
18	Vitamin K 100 mcg Superior Source	100	100%	Tablet or Pill
19	Vitamin K2 100 mcg Natural Factors	100	100%	Capsule
20	Vitamin K-2 80 mcg Indiana Botanic Gardens	100	100%	Capsule

Showing top 20 of 363 products. View all products →

How We Rank

Products are ranked by safety score (0–100), which considers UL exceedance, unsupported health claims, and proprietary blend disclosure. Products with equal safety scores are then sorted by evidence coverage — the percentage of ingredients backed by Tier-A or Tier-B research.

Safety scores are computed from product label data (DSLD) cross-referenced with 0 research sources. See our Editorial Policy for full methodology.