Supplement Recipe Check
Vitamin K1 vs K2 MK-4 and MK-7: Label Comparison
An independent reference guide to ingredient forms, characteristics, and key considerations.
Compare vitamin K by K1 or K2 form, MK-4 or MK-7 subtype, micrograms per serving, and overlap with D3 or calcium blends.
Community experiences
Selected positive personal experiences from external communities, edited and summarized. These accounts do not establish effectiveness.
A contributor who had used the MK-7 form of vitamin K2 for several months out of an interest in heart health described an unexpected change in their teeth. They felt there was less plaque and that their tooth surfaces were smoother than before. This was not a report of improved cardiovascular findings or dental test results, nor does it mean that cavities had healed or that K2 could replace brushing and dental care.
Experience shared by external community contributor A
This page is for general reference only and is not medical advice, diagnosis, treatment, or prescription. Research and regulatory status can change, so ask a qualified professional when medical judgment is needed.
Label details to check first
A front label saying vitamin K2 does not distinguish MK-4 from MK-7. Read the ingredient form and micrograms per serving.
What to compare on product labels
- Identify K1 (phylloquinone) versus K2 (menaquinone).
- For K2, check MK-4 versus MK-7 and the actual micrograms per serving.
- Add vitamin K from D3, calcium, and multivitamin blends.
Other names and search terms
Ingredients often compared together
Cautions
- If you take warfarin or another vitamin K antagonist, do not change vitamin K intake without clinical guidance.
- Differences among K forms do not by themselves prove treatment benefit for a medical condition.
Check products on Supplecipe
Search by ingredient and amount, use the single-ingredient filter, and open the full label to check candidate products.
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