Vitamin D3 + K2
People mainly take Vitamin D3 + K2 for energy, mood, immunity. Based on 48 first-hand reports. Ranked #161 of 1,974 overall.
46
User score
Mostly positive31% positive2% mixed2% negative65% unclear
Of reports that state an outcome, 89% are positive.
Clinical research
Research pending
What Vitamin D3 + K2 does, according to users
Of the people who reported each effect, the share who said it got better.
5 more with fewer than 3 reports
betterno changeworse
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
Research data for Vitamin D3 + K2 is being compiled.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
1000 IUas reported
25 mcg D3 + 40 mcg K2daily
1000 IUdaily
2000-5000 IU D3 + 100-200 mcg K2daily
5000 iu D3120 mcg K2
5000 IUdaily
Reported side effects
How often each side effect came up across all reports.
No side effects reported so far.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“D3 in MCT oil, K2 from Ahead - 20€/6mo - I'm getting more cheerful if I don't do RTL that day anyway, sometimes I skip my 1000UI”
“you can use a quality multivitamin, DHEA (25-100mg), ômega 3, D3+K2, a good pre workout”
“D3 + K2 25mcg + 40mcg - immune, heart, muscle”
“Vitamin D3/K2 | 5000iu and 120mcg”
“Vitamin D3/K2 therapy. Starting at 5000iu pd.”
Top discussions (5)
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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