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  • How are reviewers describing this item?
    good, easy, great and high.
  • Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 5.
  • Previous analysis of this listing was an C grade.
  • Our engine has profiled the reviewer patterns and has determined that there may be deception involved.
  • Our engine has determined that the review content quality is low.
  • Our engine has analyzed and discovered that 72.5% of the reviews are reliable.
  • This product had a total of 510 reviews as of our last analysis date on Jul 12 2020.


Most positive reviewquestion

I take Vitamin K2 when I take Calcium Citrate so the calcium will go where it is suppose to and not calcify my arteries.

Least positive reviewquestion

Not enough review data to provide meaningful insight.

Most authentic reviewquestion

Added K2 to my vitamin regimen after suggestion from a nurse practitioner.

Least authentic reviewquestion

Probably good for us. I have no way of telling for sure.

Helpful Insights


    Posted by a reviewer on Amazon

    I have no way of telling for sure.

    Posted by a reviewer on Amazon

    I t was my mistake to claim it was empty.

    Posted by a reviewer on Amazon

    Too many doctors are not familiar with this stuff, which is such a shame.

    Posted by a reviewer on Amazon

    That this product is verified by third party testing is very important to me.

Review Count History
Price History