The Claim

In postmenopausal women with osteopenia receiving adequate calcium and vitamin D, vitamin MK-7 supplementation has no significant effect on bone turnover markers.

Source: The effect of vitamin MK-7 on bone mineral density and microarchitecture in postmenopausal women with osteopenia, a 3-year randomized, placebo-controlled clinical trial

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
78score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Description
1 study reviewed
In plain English

In postmenopausal women with low bone density who are already getting enough calcium and vitamin D, taking vitamin MK-7 does not change the rate of bone remodeling as measured by bone turnover markers.

See the scientific wording

In postmenopausal women with osteopenia receiving adequate calcium and vitamin D, vitamin MK-7 supplementation does not reduce bone turnover markers, indicating no significant effect on the rate of bone remodeling.

Why this might work

Vitamin MK-7 helps activate a bone protein called osteocalcin by adding a chemical group to it, which lets the protein bind better to bone mineral. This activation happens, but it does not change how fast bone is broken down or rebuilt, even when the body has enough calcium and vitamin D.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: The effect of vitamin MK-7 on bone mineral density and microarchitecture in postmenopausal women with osteopenia, a 3-year randomized, placebo-controlled clinical trial

    Even though vitamin MK-7 helped a blood marker related to bone health, it didn’t make bones break down or rebuild any faster in women who were already getting enough calcium and vitamin D. So, it didn’t change the overall bone remodeling process.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.