Vitamin K2
Practitioner-grade vitamin k2 by Ortho Molecular Products
May be a fit for
- Adults seeking menaquinone-7 support for bone mineral density maintenance
- Practitioners protocols requiring vitamin K2 for cardiovascular calcium utilization
- Postmenopausal individuals supporting skeletal integrity with MK-7 supplementation
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Ortho Molecular Products' Vitamin K2 delivers menaquinone, the bioactive form of vitamin K, formulated to support healthy bone mineralization and cardiovascular function. Designed with a practitioner-grade standard, it's well-suited for adults focused on maintaining long-term skeletal integrity and arterial health.
Why It's Worth Considering: Ortho Molecular Products is a clinician-trusted brand known for rigorous raw material sourcing and manufacturing standards, this K2 formulation reflects that attention to bioactive form selection over less active alternatives.
50+ signals. A clearer standard.
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Product details
Who it may suit
May be a fit for
- Adults seeking menaquinone-7 support for bone mineral density maintenance
- Practitioners protocols requiring vitamin K2 for cardiovascular calcium utilization
- Postmenopausal individuals supporting skeletal integrity with MK-7 supplementation
- Patients on long-term vitamin D therapy needing K2 cofactor balance
Considerations
- Taking warfarin/Coumadin (K2 counteracts warfarin — consult physician)
- Other vitamin K-dependent anticoagulants
- Note: K2 does NOT interact with non-vitamin-K blood thinners like Eliquis or Xarelto
Compatibility & interactions
Works Well With
Ask Gabriel for personalized stacking recommendations.
Take Separately From
No significant interactions identified. Always consult your healthcare provider.
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More category questions
What is the difference between K1 and K2?
Vitamin K1 (phylloquinone) is for blood clotting — abundant in leafy greens. Vitamin K2 (menaquinone) directs calcium metabolism — puts calcium in bones and keeps it out of arteries. Most people get enough K1 from diet but are deficient in K2, which is found mainly in fermented foods (natto, certain cheeses) and animal liver.
What is MK-7 and why is it the preferred form?
MK-7 is the most bioavailable and longest-acting form of K2, with a half-life of ~3 days (vs ~1 hour for MK-4). This means a single daily dose maintains therapeutic blood levels 24/7. MK-7 is derived from natto (fermented soybeans) and has the strongest clinical evidence for bone density and arterial health.
How much vitamin K2 should I take?
For general health with D3: 100-200mcg MK-7 daily. For osteoporosis: 180-360mcg. For cardiovascular calcification prevention: 180-200mcg. The dose should scale with your D3 intake — higher D3 doses require more K2 to handle the increased calcium absorption.
Can I take K2 if I'm on blood thinners?
If you're on warfarin/Coumadin: NO — K2 counteracts warfarin and will destabilize your INR. Consult your cardiologist. If you're on newer anticoagulants (Eliquis/apixaban, Xarelto/rivaroxaban, Pradaxa/dabigatran): these are NOT vitamin K-dependent, so K2 is safe. Always confirm with your prescribing physician.
Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.