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Also known as: Menaquinone-7, MK-7, vitamin K2 MK-7
A fat-soluble vitamin that plays a role in calcium metabolism, directing calcium into bones and teeth rather than soft tissues and arteries. Often taken alongside vitamin D3 and calcium for bone health. Increasingly recognised for cardiovascular health in postmenopausal women.
This page contains self-reported experiences from the Narrated community — not clinical data. Outcomes are subjective. Always consult your doctor or specialist before starting, stopping, or changing any approach.
Total Reports
7
Median Score (Wk 8)
7/10
Would Continue
86%
Avg Duration
10 wk
Most Common Goal
menopause
Most Reported Side Effect
None reported
Based on self-reported community data. Scores use a 1–10 scale.
Regulatory status does not mean an approach is safe or unsafe. Laws vary by country — check your local regulations.
Women who reported on Vitamin K2 mentioned using it for the following goals. This does not mean it is intended for or achieves any of these outcomes.
Aggregated patterns from 7 self-reported experiences with Vitamin K2.
86% of women said they would continue this protocol
6.9/10 average self-reported outcome score at week 8
Outcome Score Distribution (Week 8)
7 of 7 reports included a week 8 score
Would Continue Protocol
7 of 7 reports included this response
Based on 7 self-reported experiences. This is community data, not clinical evidence. Individual outcomes vary. Discuss any intervention with your healthcare provider.
7 reports from women who tried Vitamin K2
I started Vitamin K2 after dealing with weight gain around the middle for months. By week 4 I noticed the brain fog started to lift. At 10 weeks, my quality of life improved dramatically. It's not perfect but it's made a real difference.
I was sceptical about Vitamin K2 but desperate with my sleep problems and fatigue. Slow start honestly. By week 10, I felt significantly better. Worth persevering through the first few weeks.
My women's health nurse suggested Vitamin K2 for my loss of confidence and low mood. It took about 4 weeks to notice anything, but by week 8 I could function normally again. Still taking it and plan to continue.
Vitamin K2 has been surprisingly effective for my weight gain around the middle. I noticed I felt a bit more like myself fairly quickly. the symptoms were about 70% better over the following weeks. It's not perfect but it's made a real difference.
I tried Vitamin K2 for hot flashes and night sweats but the results were mixed. I felt a bit more like myself, but the side effects made it hard to continue. It's OK but I expected more.
Research context compiled from published sources
Activates osteocalcin (which binds calcium to bone matrix) and matrix Gla protein (which prevents arterial calcification). Without adequate vitamin K2, these proteins remain inactive and calcium may deposit in arteries rather than bones. Works synergistically with vitamin D3, which increases calcium absorption.
Unknown
Unknown
Dose ranges from published research. Individual dosing should be determined with your healthcare provider based on your specific circumstances.
Factual research context from published sources — not a safety assessment or recommendation. Research classifications may change as new data emerges.
Other Supplement tracked on Narrated.
Data last updated: March 27, 2026