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Vitamin K-1

product on market Tablet or Pill The Vitamin Shoppe 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 K is essential for blood coagulation and bone mineralization. There is strong evidence supporting its role in maintaining skeletal health and regulating clotting mechanisms. Research indicates a high safety profile for this nutrient when taken as directed.

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

Label

Product Label

Label for Vitamin K-1
Open Full PDF View on NIH DSLD →
Details

Label Data

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

Supplement Facts — Evidence Check

100 mcg (125% DV)
Within RDA (0.8× RDA) 275 studies (A:9, B:175)

Other Ingredients

Microcrystalline Cellulose Dicalcium Phosphate Stearic Acid Magnesium Stearic Acid Magnesium Stearate Croscarmellose Sodium
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Directions As a dietary supplement, take one (1) tablet daily, preferably with a meal.

Warnings & Precautions

Warning KEEP OUT OF REACH OF CHILDREN.

Formulation Notes

Does Not Contain: Yeast, Corn, Wheat, Sugar, Salt, Soy, Starch, Dairy, Citrus, Fish, Preservatives, Artificial Colors or Flavors Added.

Additional Information

SINCE 1977 VITAMINS

Fat Soluble Vitamin

Product Label Numerous studies show that many people are not getting the recommended daily requirement of this important vitamin. Vitamin K-1 (as phytonadione), converts osteocalcin, which is a bone protein important for keeping calcium within the bone.

Metadata

Product Details

DSLD Entry Date2015-04-24
Product TypeVitamin
FormTablet or Pill
BrandThe Vitamin Shoppe
DSLD ID44868
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.