🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

1 Capsule(s) Serving Size
360 Servings
Other Combinations Product Type
33% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
5 mg (8% DV)
500 mcg (625% DV)
📊 4.2× RDA — above typical dose 📚 273 studies (Tier A: 9, B: 175)
RDA 0.12mg This product: 0.5mg
Calcium
150 mg (15% DV)

Other Ingredients

Gelatin Capsule

Label Claims — Verification

All Other
Structure/Function
All Other (100% of products) Structure/Function (84% of products) Nutrient (73% of products)

Target Groups

Adult (18 - 50 Years) No Allergies

Product Information

📋 Directions for Use

SUGGESTED USE Consume one capsule daily or as recommended by a health care professional. For best results, take this product with food containing a small amount of fat.

⚠️ Warnings & Precautions

WARNING Unless directed by a physician, Vitamin K is not for use with any anticoagulant drugs (Coumadin, Warfarin, Heparin, etc.).

If you have ever experienced any blood clotting abnormalities, consult with a health professional before using this or any Vitamin K-containing product.

Of course, our Vitamin K is not intended for use by those being treated for blood clotting issues without physician approval.

🧪 Formulation Notes

Optimum Skeletal Support and Calcium Utilization

Andrew Lessman’s Vitamin K-500 provides a convenient high potency source of Vitamin K-1 (Phytonadione).

CONTAINS NO ADDITIVES OR COMMON ALLERGENS OF ANY KIND.

Additional Information

For answers to questions about the use of this product call 800.800.1200.

All-Solar MANUFACTURING

603455 - 01P

Vitamin K is well-known for its essential role in blood clotting and its name is derived from the German word Koagulation (English coagulation or clotting).

Beyond its role in blood clotting, Vitamin K plays many other vital functions in the body, most noteworthy is its crucial role in the utilization and retention of Calcium in bone. Numerous clinical studies have shown that healthy levels of Vitamin K support improved bone and skeletal health. Unfortunately, like many key nutrients, Vitamin K is found in foods that most Americans avoid, such as green leafy vegetables. Making matters worse is the fact that Vitamin K is not well stored in the body and requires consistent replenishment. When combined with a diet or supplement regime rich in the other bone health nutrients: Calcium and Vitamin D, our Vitamin K-500 provides an economical and effective means of achieving the levels of Vitamin K necessary to support optimum bone and skeletal health.

Product Details

DSLD Entry Date 2014-02-26
Product Type Other Combinations
Form Capsule
DSLD ID 30250
Data Updated 2026-04-11

Research Evidence

332 Research Sources
59 Avg Quality Score
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
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
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
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
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
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
A Antiplatelet agents and anticoagulants for hypertension
Systematic Review The Cochrane database of systematic reviews 2022
A Primary prophylaxis for venous thromboembolism in ambulatory cancer patients receiving chemotherapy
Meta Analysis The Cochrane database of systematic reviews 2012
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
A Anticoagulation for the long-term treatment of venous thromboembolism in patients with cancer
Meta Analysis The Cochrane database of systematic reviews 2014
View all evidence for Vitamin K →

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