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Vitamin K 500 mcg

product on market Tablet or Pill Source Naturals Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin K and calcium are utilized to support bone health and blood coagulation. While research on these nutrients is extensive, the evidence coverage for this specific formulation is limited. Both ingredients are generally well-tolerated and maintain a high safety profile.

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

Label

Product Label

Label for Vitamin K 500 mcg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
Single Vitamin and Mineral
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

500 mcg (625% DV)
4.2× RDA — above typical dose 275 studies (A:9, B:175)
Calcium
43 mg (4% DV)

Other Ingredients

Dibasic Calcium Phosphate Microcrystalline Cellulose Stearic Acid Silicon Dioxide, Colloidal Magnesium Stearate
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: 1 tablet daily, preferably with a meal.

Warnings & Precautions

Contains wheat.

Caution: If you are taking anticoagulant drugs, such as warfarin (Coumadin), or if you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing.

Keep out of the reach of children.

Formulation Notes

Contains wheat.

Suitable for Vegetarians: Contains no yeast, dairy, egg or soy.

Suitable for Vegetarians: Contains no yeast, dairy, egg or soy. Contains no starch, salt, preservatives, or artificial color, flavor or fragrance.

Additional Information

Vitamin K, or phylloquinone, is a fat-soluble vitamin best known for its important function in the biological activity of several blood coagulation factors. Recent research has also shown a role for vitamin K in bone health. Vitamin K plays a key role in the synthesis of the bone proteins osteocalcin and matrix Gla-protein, which are involved in calcium and bone metabolism.

SN1449 REV A113

Metadata

Product Details

UPC / SKU0 21078 01449 2
DSLD Entry Date2017-04-25
Product TypeSingle Vitamin and Mineral
FormTablet or Pill
BrandSource Naturals
DSLD ID73000
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.