The Claim

Daily supplementation with 45 μg of menaquinone-7 for 8 weeks reduces the undercarboxylated to carboxylated osteocalcin ratio by approximately 30% in healthy prepubertal children aged 6–10 years, without altering bone turnover markers or coagulation parameters.

Source: The effect of menaquinone-7 (vitamin K2) supplementation on osteocalcin carboxylation in healthy prepubertal children

What the research says

Supports is higher

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

Supports
54score
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.

Quantitative
1 study reviewed
In plain English

In healthy children aged 6 to 10, taking 45 micrograms of vitamin K2 daily for 8 weeks lowers the ratio of inactive to active osteocalcin by about 30%, with no change in bone turnover or blood clotting markers.

See the scientific wording

Supplementation with 45 μg of menaquinone-7 (vitamin K2) daily for 8 weeks significantly reduces the undercarboxylated to carboxylated osteocalcin ratio (ucOC:cOC) by approximately 30% in healthy prepubertal children aged 6–10 years, indicating improved vitamin K status for bone protein activation, without altering bone turnover markers or coagulation parameters.

Why this might work

A vitamin K2 molecule enters the bloodstream from the gut, travels to bone cells, and helps an enzyme add a special chemical group to a bone protein. This change lets the protein bind to minerals in bone, making it functional. Without this vitamin, the protein stays inactive and cannot help build strong bone.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: The effect of menaquinone-7 (vitamin K2) supplementation on osteocalcin carboxylation in healthy prepubertal children

    Giving kids a daily vitamin K2 pill for two months helped their bodies activate a bone protein better, without changing how their blood clots or how their bones grow. The study proved it works.

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.