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Vitamin K2

product on market Capsule Woodstock Vitamins Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Vitamin K2 is researched for its role in supporting bone density and cardiovascular health by regulating calcium deposition. There is moderate to strong evidence suggesting it works synergistically with Vitamin D to improve bone mineralization. This ingredient is generally recognized as safe for most healthy adults.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Vitamin K2
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
60
Servings
Vitamin
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

45 mcg (38% DV)
Within RDA (0.4× RDA) 275 studies (A:9, B:175)

Other Ingredients

Microcrystalline Cellulose HPMC Stearic Acid Magnesium Stearate Silica
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Take one capsule with a meal, one to two times daily, or as directed by your healthcare practitioner.

Warnings & Precautions

Consult your healthcare practitioner prior to use.

Individuals taking medication should discuss potential interactions with their healthcare practitioner. Consider total vitamin intake (food + supplements) if you are taking blood-thinning medication.

Do not use if tamper seal is damaged.

Storage: Keep closed in a cool, dry place out of reach of children.

Formulation Notes

Vitamin K2 derived from non-GMO soybeans fermented with Bascillus subtilisnatto, is the most bioavailable and bioactive form of supplemental vitamin K2 available.

Historical use and numerous studies have confirmed safety and efficacy for bone and heart health.

Does not contain: Wheat, gluten, yeast, soy protein, animal or dairy products, fish, shellfish, peanuts, tree nuts, egg, ingredients derived from genetically modified organisms (GMOs), artificial colors, artificial sweeteners, or artificial preservatives.

Natural vitamin K2 as MK-7

Manufactured in a GMP compliant facility.

Additional Information

Storage: Keep closed in a cool, dry place out of reach of children.

Professional use only.

Vegetarian Caps

This package is completely recyclable

Metadata

Product Details

UPC / SKU6 69439 85731 1
DSLD Entry Date2020-05-22
Product TypeVitamin
FormCapsule
BrandWoodstock Vitamins
DSLD ID216988
Data Updated2026-04-11
Research

Research Evidence

332
Research Sources
59
Avg Quality
220
Meta Analysis
56
Systematic Review
30
Rct
16
Clinical Trial
3
Guideline
3
Regulatory Source
1
Narrative Review
1
Other
1
Openfda Safety
A Duration of treatment with vitamin K antagonists in symptomatic venous thromboembolism
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Antiplatelet and anticoagulant agents for secondary prevention of stroke and other thromboembolic events in people with antiphospholipid syndrome
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
A Anticoagulants (extended duration) for prevention of venous thromboembolism following total hip or knee replacement or hip fracture repair
Meta Analysis The Cochrane database of systematic reviews 2016 PubMed DOI
A Antiplatelet and anticoagulant agents for secondary prevention of stroke and other thromboembolic events in people with antiphospholipid syndrome
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Direct factor Xa inhibitors versus low molecular weight heparins or vitamin K antagonists for prevention of venous thromboembolism in elective primary hip or knee replacement or hip fracture repair
Meta Analysis The Cochrane database of systematic reviews 2025 PubMed DOI
A Factor Xa inhibitors versus vitamin K antagonists for preventing cerebral or systemic embolism in patients with atrial fibrillation
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Antiplatelet agents and anticoagulants for hypertension
Systematic Review The Cochrane database of systematic reviews 2022 PubMed DOI
A Primary prophylaxis for venous thromboembolism in ambulatory cancer patients receiving chemotherapy
Meta Analysis The Cochrane database of systematic reviews 2012 PubMed DOI
A Factor Xa inhibitors versus vitamin K antagonists for preventing cerebral or systemic embolism in patients with atrial fibrillation
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Anticoagulation for the long-term treatment of venous thromboembolism in patients with cancer
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
View all evidence for Vitamin K →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.