Vitamin K2 Didn't Help Muscle Recovery in This 12-Week Trial
Graded Moderate — double-blind randomized trial in 71 healthy adults over 12 weeks, though the sample was small and split across two age groups at a single site.
- Design
- Randomized Controlled Trial
- Participants
- 71
- Duration
- —
- Funding
- —
This study suggests vitamin K2 at this dose does not meaningfully improve post-exercise muscle recovery.
After 12 weeks of daily vitamin K2 supplements, neither young nor older adults saw improvements in muscle strength, soreness, or physical function after a tough leg workout. Some secondary measures in older adults showed small shifts in muscle activation speed and a damage marker at 72 hours. But the main outcomes were all null. The researchers say the age-specific signals need more study before drawing conclusions.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.
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