Dosages for vitamin k2

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The dosages below are from completed studies on humans or on clinical trials on humans. In general, they represent safe dosages for most people. Please be aware that there is often an exponentail effectiveness. Talking half the dosage may only see 1/4 of the effect. We are not looking at minimum effective dosage, but maximum [safe] dosage used in clinical trials and studies.

If a study has been completed, the dosage will be marked Ineffective or Effective -- depending if statistically changes were reported by the study.

This is not medical advice (see your MD for that). It is a reporting on dosages that some MDs have used.

Suggestions for vitamin k2
Study Clinical Study Dosage Effective
📚 Study 2   mg/day Effective
📚 Study 100   mcg/day Ineffective
📚 Study 500   µg/day Ineffective
. Vitamin K to Slow Progression of Cardiovascular Disease Risk in Hemodialysis Patients 360   mcg/day
. Vitamin K Supplementation Study in Healthy Volunteers (Aim 2B) 1   mg/day
📚 Study 500   mcg/day Effective
. Randomized Controlled Clinical Trial to Investigate Effects of Vitamin K2 in COVID-19 (KOVIT) 999   mcg/day

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