Vitamin K2 (MK-7)
Menaquinone-7. Dietary Supplement, vitamin.
This page describes what Vitamin K2 (MK-7) is and its known risks. It is not medical advice and not a guide to using it. Many of these substances are prescription-only or illegal to use without a prescription. Speak to a doctor.
- Class
- Dietary Supplement
- Legal status
- Over-the-counter (unrestricted)
- Half-life
- ~3 days
- Liver strain
- None at typical doses
- Kidney strain
- None at typical doses
- Converts to estrogen
- None
- Suppresses natural hormones
- Not typically
Medical uses
- Bone health support
What it does in the body
Cardiovascular
- Activates proteins that direct calcium to bone and away from arteries
Forms, half-life and detection
| Form | Half-life | Reported detection window |
|---|---|---|
| Oral (capsule/drops) | ~3 days | N/A (not a banned substance) |
Side effects and health risks
Interactions
- Interferes with warfarin and similar blood thinners
Related compounds
Questions
What is the half-life of Vitamin K2 (MK-7)?
About ~3 days. Half-life is the time for the level in the blood to fall by half.
How long is Vitamin K2 (MK-7) detectable?
Testing windows of N/A (not a banned substance) are reported, depending on the test and the person.
Is Vitamin K2 (MK-7) legal?
Over-the-counter (unrestricted). Laws differ by country and change; check the rules where you live.
What blood tests matter with Vitamin K2 (MK-7)?
Ask a doctor which tests suit you.
What are the side effects of Vitamin K2 (MK-7)?
Interactions: interferes with warfarin and similar blood thinners.
For information only, not medical advice. MyoStats is a tracking tool used at your own discretion. Speak to a doctor before changing your training, diet, medication or anything you take.