Comparison

Vitamin K2 MK7 vs Vitamin K2 MK4

TL;DR

Quick comparison: Vitamin K2 MK7 and Vitamin K2 MK4 have 0 overlapping categories and appear together in 3 products.

Choose Vitamin K2 MK7 if: Vitamin K2 MK-7 (menaquinone-7) is the most bioavailable and longest-acting form...
Choose Vitamin K2 MK4 if: Vitamin K2 MK4 is a form of Vitamin K2 that plays a critical role in calcium met...
Take both if: You want comprehensive coverage across 0 shared categories.

565 products

analyzed in our comprehensive supplement database

Source · MoodStack Database (2026)

Side-by-side comparison

Feature	Vitamin K2 MK7	Vitamin K2 MK4
Type	vitamin	vitamin
Common Dosage	100-200 mcg daily (take with vitamin D3 and fat)	90-120 mcg
Best Bioavailability	Menaquinone-7 (90%)	Menaquinone-4 (40%)
Categories	1	0
Available Products	0	0

Vitamin K2 MK7

Typevitamin

Common Dosage100-200 mcg daily (take with vitamin D3 and fat)

Best BioavailabilityMenaquinone-7 (90%)

Categories1

Available Products0

Vitamin K2 MK4

Typevitamin

Common Dosage90-120 mcg

Best BioavailabilityMenaquinone-4 (40%)

Categories0

Available Products0

Can you take both?

Yes, Vitamin K2 MK7 and Vitamin K2 MK4 can typically be taken together. In fact, we found 3 products in our database that contain both supplements, suggesting they complement each other well.

Key differences

Option A

Vitamin K2 MK7

Vitamin K2 MK-7 (menaquinone-7) is the most bioavailable and longest-acting form of vitamin K2, derived from natto fermentation. It activates osteocalcin (directing calcium to bones) and matrix Gla protein (preventing arterial calcification). MK-7 has a 72-hour half-life vs 1-2 hours for MK-4, making it superior for daily dosing.

Vitamin K2 MK4

Vitamin K2 MK4 is a form of Vitamin K2 that plays a critical role in calcium metabolism, supporting bone and cardiovascular health.

Common forms

Menaquinone-4 · 40% bioavailability

Products with both Vitamin K2 MK7 and Vitamin K2 MK4

We found 3 products that combine both supplements:

AG1 Vitamin D3 + K2 Drops

84·AG1

Regulate

77·LifeBlud

Essential Softgel

77·Blueprint

Frequently asked

What is the difference between Vitamin K2 MK7 and Vitamin K2 MK4?

Vitamin K2 MK7 and Vitamin K2 MK4 are both important supplements with distinct properties. Vitamin K2 MK7 Vitamin K2 MK-7 (menaquinone-7) is the most bioavailable and longest-acting form of vitamin K2, derived from natto fermentation. It activates osteocalcin (directing calcium to bones) and matrix Gla protein (preventing arterial calcification). MK-7 has a 72-hour half-life vs 1-2 hours for MK-4, making it superior for daily dosing., while Vitamin K2 MK4 Vitamin K2 MK4 is a form of Vitamin K2 that plays a critical role in calcium metabolism, supporting bone and cardiovascular health..

Can I take Vitamin K2 MK7 and Vitamin K2 MK4 together?

Based on our analysis of 3 products that contain both, yes, Vitamin K2 MK7 and Vitamin K2 MK4 can typically be taken together. However, always consult with a healthcare provider before combining supplements.

Which is more popular: Vitamin K2 MK7 or Vitamin K2 MK4?

In our database of 565 products, Vitamin K2 MK7 appears in 9 products, while Vitamin K2 MK4 appears in 4 products.

Related comparisons & products

What is Vitamin K2 MK7?What is Vitamin K2 MK4?AG1 Vitamin D3 + K2 Drops (contains both)Regulate (contains both)Essential Softgel (contains both)

Medical disclaimer: This content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any supplement regimen.