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HFL Health Findings Lab™

Vitamin K2

A fat-soluble vitamin that directs calcium into bones and teeth while preventing its calcification in blood vessels.

Evidence-Based
Fact-Checked
Updated: Oct 10, 2026
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Clinical Profile

Quick Reference

Scientific Rating
4.7
/ 5.0
Standardized Form
Menaquinone-7 (MK-7) or Menaquinone-4 (MK-4)

Vitamin K2 (Menaquinone) is essential for activating osteocalcin and matrix GLA protein (MGP). Osteocalcin pulls calcium into the bone matrix, while MGP inhibits calcium from depositing in arterial walls. This makes K2 a critical synergistic partner for Vitamin D3.

Clinical Summary

Strongly supported for supporting cardiovascular health (arterial flexibility) and improving bone mineral density.

Dosage Guidelines

90mcg to 120mcg daily.

Safety & Side Effects

Exceptionally safe with no established upper limit.

Known Interactions

Strongly antagonizes anticoagulants like Warfarin (Coumadin).

Scientific References

Medical Disclaimer

The information provided in this clinical review is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment.

*These statements have not been evaluated by the Food and Drug Administration (FDA). This product or ingredient is not intended to diagnose, treat, cure, or prevent any disease.

Always consult your physician or other qualified health provider with any questions you may have regarding a medical condition, or before beginning any new diet, fitness, supplement, or treatment regimen, especially if you have pre-existing medical conditions or are taking prescribed medications.

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