Vitamin K2
Menaquinone
The underappreciated partner to Vitamin D3, K2 activates proteins that direct calcium to bones and teeth while preventing dangerous arterial calcification.
Known Health Benefits
Active Compounds
MK-4, MK-7 (menaquinones)
Dosage Guidance
100–200 mcg MK-7 daily
Always consult a healthcare provider for personalized dosing.
Potential Side Effects
Generally very safe; GI discomfort rare
Known Drug Interactions
MAJOR interaction with warfarin and other blood thinners — must monitor INR
Evidence Classification
Supported by cohort studies, case-control studies, or multiple observational studies with consistent findings.
Related Entries
Have questions about Vitamin K2?
Ask Mother Nature AI about dosing, interactions with your medications, whether it fits your health goals, and more — personalized to your health profile.
This entry is for educational purposes only. It is not medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement regimen, especially if you take medications or have health conditions.