Vitamin K2 MK7
People mainly take Vitamin K2 MK7 for heart & lipids, energy, libido. Based on 41 first-hand reports and 0 meta-analyses & systematic reviews in the medical literature. Ranked #494 of 1,974 overall.
Of reports that state an outcome, 63% are positive.
What Vitamin K2 MK7 does, according to users
Of the people who reported each effect, the share who said it got better.
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
1–4 randomized controlled trials, no meta-analysis yet. The grade measures how much human research exists — read the conclusions below for what it found.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“Vitamin k2, mk7, 100 mcg”
“do you think K2 MK7 needs to be taken along for doses above 5k? What's the safe upper limit for D3?”
“if you also take enough k2 mk7 you can probably take even 10000 ui a day and be fine”
“always take it with K2 MK7”
“K2 (esp. MK-7) carboxylates osteocalcin + matrix Gla protein, directing calcium into bone/teeth instead of arteries/soft tissue”
Top discussions (5)
- High dose vitamin D allocates surplus calories to muscle and growth instead of fat via modulation of myostatin and leptin signaling ↗
- Rate my stack! M(45) looking for longevity, anti-aging and body aesthetics... ↗
- Anyone take 5,000 IUs vitamin D daily? Is this safe? ↗
- Stacking magnesium, D3 & K2 actually made a bigger difference than I expected ↗
- Supplement or recommenations for stronger/harder erections ↗
Other options for heart & lipids
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate