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Supplements / Conditional

Vitamin K2 (MK-7)

Good evidenceMorningConditional

Best for: Healthy aging, Joint mobility, Brain longevity

Vitamin K2 (MK-7) is rated good evidence (tier B on our evidence scale). 90–180 mcg daily of MK-7. Morning with a fat-containing meal.

Sources last reviewed

When and how to take Vitamin K2 (MK-7)

Dose
90–180 mcg daily of MK-7.
Timing
Morning with a fat-containing meal.
Review
Reassess after 12 weeks.
Forms
mk-7 (menaquinone-7)

What Vitamin K2 (MK-7) is used for

  • Helps direct calcium toward bone and away from arteries; sensible companion when supplementing higher-dose vitamin D.
  • Strong interaction with warfarin and other vitamin-K-antagonist anticoagulants.

When Almavivo suggests Vitamin K2 (MK-7)

  • If you reported supplementing or being low on vitamin D: studied for calcium routing to bone alongside vitamin D supplementation.
  • If the bone and arterial endpoints are most studied in adults 45+: studied for bone density and arterial calcification markers.

Who should be careful with Vitamin K2 (MK-7)

2 flagged
  • Not appropriate if you take a blood thinner.
  • Discuss with a clinician if you take a blood thinner.

Safety checks for Vitamin K2 (MK-7)

1 in the safety matrix

What to look for when buying Vitamin K2 (MK-7)

  • Preferred third-party verification: USP Verified, Third-party tested (COA).
  • Common contamination risks: Mislabeling / identity.
  • Form: MK-7 form preferred over MK-4 for half-life; verify menaquinone content.

Talk to a clinician first

Gated

This is a supplement we won’t link to a specific product without clinician context. Significant interaction with warfarin; affiliate exposure must include clear warning.Once we offer clinician partner pathways, this is where they’ll appear.

If you’re working with a doctor or qualified practitioner, they can advise on dose, brand, and monitoring.

Your experience

Stays on this device

If you’ve tried Vitamin K2 (MK-7), you can log how it went. This stays on your device — only you see it.

We frame these as personal experience, not medical claims. Self-reported subjective outcomes are influenced by placebo, regression to the mean, and parallel lifestyle changes. We’ll never present ratings as equivalent to RCT evidence.

Research sources for Vitamin K2 (MK-7)

1 reviewed

Almavivo is for education only, not medical advice. Check with a doctor or pharmacist before starting a supplement, especially if you take prescription medicine, are pregnant or breastfeeding, or have a long-term health condition.

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