Timing Protocol
When to Take Vitamin K2 — Expert Timing Protocols
Expert-analyzed timing recommendations for vitamin k2 based on what 5 longevity researchers say about when, how, and what to take it with.
Quick Timing Guide
Take with a fat-containing meal for absorption, same as vitamin D. Morning or midday preferred. Take alongside vitamin D3 for synergistic calcium metabolism.
Moderate Consensus
on Vitamin K2 overall
Full Protocol
Timing
Take with a fat-containing meal for absorption, same as vitamin D. Morning or midday preferred. Take alongside vitamin D3 for synergistic calcium metabolism.
Dosage
100-200mcg MK-7 daily is the commonly cited supplemental dose. No expert specifies an exact K2 dosage in analyzed videos — Hyman and Johnson take it as part of a combined D3/K2 supplement.
Form
MK-7 (menaquinone-7) is the most common supplemental form due to longer half-life. Combined D3/K2 supplements are the most practical format. Food sources include natto (highest K2 content), hard cheeses, egg yolks, and grass-fed butter.
Notes
Individuals on warfarin or other anticoagulants must consult their physician before supplementing with any form of vitamin K — it can interfere with blood-thinning medication. Vitamin K2 (MK-7) has a longer half-life than K1, meaning consistent daily dosing maintains more stable blood levels. There is no established RDA specifically for K2 — only for total vitamin K (90-120mcg/day).
Expert Positions
What Each Expert Says About Timing
Huberman has zero mentions of vitamin K2 across his entire analyzed video library. Despite detailed coverage of vitamin D, magnesium, omega-3, creatine, and other supplements, K2 does not appear in any episode, AMA, or guest discussion. This absence is notable given the D3+K2 pairing recommended by Hyman, Patrick, and Johnson.
Unlock the Full Picture
Go beyond the consensus — see exactly what each expert says about vitamin k2.
- Per-expert timing protocols & reasoning
- Interaction warnings & disagreements
- Video citations with timestamps