Home/ Supplements/ Vitamin K/ Vitamin K2

Vitamin K2

product on market Tablet or Pill USANA 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 plays a critical role in regulating calcium metabolism and supporting bone and cardiovascular health. There is strong evidence supporting its necessity for the activation of proteins that bind calcium to the bone matrix. However, the overall evidence coverage for this specific formulation is limited.

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 Tablet(s)
Serving Size
28
Servings
Vitamin
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

180 mcg (150% DV)
1.5× RDA — within safe limits 275 studies (A:9, B:175)

Other Ingredients

Microcrystalline Cellulose Starch, Pregelatinized Ascorbyl Palmitate Croscarmellose Sodium Silicon Dioxide Maltodextrin Sunflower Lecithin Palm Olein Guar Gum
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Directions: Take one (1) tablet daily, preferably with food.

Warnings & Precautions

Keep out of reach of children.

Consult your physician if you are pregnant, nursing, taking a prescription drug, or have a medical condition.

There is a safety seal under the cap. Do not use if the seal is broken or missing.

Formulation Notes

Laboratory tested. Quality guaranteed. Meets USP specification for uniformity, potency, and disintegration, where applicable.

Additional Information

Keep tablets in original container with the lid tightly closed between use. Store in a cool, dry place. Store below 25 degrees C.

Discard seal, empty & replace cap Plastic bottle how2recycle.info

MWT Potency Guaranteed

Metadata

Product Details

DSLD Entry Date2024-12-21
Product TypeVitamin
FormTablet or Pill
BrandUSANA
DSLD ID322337
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 →
Compare

Similar Products

Vitamin K 100 mcg
Vitamin World · Tablet or Pill
100
Vitamin K2
Higher Nature · Tablet or Pill
100
Vitamin K-1
The Vitamin Shoppe · Tablet or Pill
100
Vitamin K1 100 mcg
The Vitamin Shoppe · Tablet or Pill
100
Vitamin K1 100 mcg
Country Life · Tablet or Pill
100
View all Vitamin K products →
Vitamin K research Best Vitamin K All Vitamin K products More from USANA View on NIH DSLD →

This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.