Vitamin D and Vitamin K2 (Menaquinone)
Last updated: August 9, 2026
These two enhance each other.
Short answer
Yes. Vitamin D and Vitamin K2 (Menaquinone) enhance each other — there's no reason to keep them apart, and pairing them can help each do its job.
Why Vitamin D and Vitamin K2 (Menaquinone) help each other
Vitamin D's page says: Vitamin K2 complements vitamin D by helping the calcium it absorbs reach bone.
Vitamin K2 (Menaquinone)'s page says: Vitamin D increases calcium absorption, which vitamin K2 then helps direct to bone.
What this means in practice
Because Vitamin D and Vitamin K2 (Menaquinone) work together, there's nothing extra to manage here. You don't need to take them at the exact same time or in the exact same dose — the benefit shows up whenever both are adequately present in your body, whether that's from the same meal, the same supplement, or just the same day.
Learn more about each nutrient
- Vitamin D — RDA, upper limit, and food sources.
- Vitamin K2 (Menaquinone) — RDA, upper limit, and food sources.
Frequently asked questions
Can I take Vitamin D and Vitamin K2 (Menaquinone) together?
Yes. Vitamin D and Vitamin K2 (Menaquinone) enhance each other — there's no reason to keep them apart, and pairing them can help each do its job.
Why do Vitamin D and Vitamin K2 (Menaquinone) interact?
From Vitamin D's side: Vitamin K2 complements vitamin D by helping the calcium it absorbs reach bone. From Vitamin K2 (Menaquinone)'s side: Vitamin D increases calcium absorption, which vitamin K2 then helps direct to bone.
Does timing matter for Vitamin D and Vitamin K2 (Menaquinone)?
Not especially — this is a helpful pairing, not a competing one, so there's no timing workaround needed.
Sources
The relationship described above comes from the same nutrient config that runs inside the Tavita app — see the methodology pagefor how it's sourced and verified. This page is educational information, not medical advice; talk to your clinician before changing your supplement routine.