The claim
主成分に添加物がたくさん含まれているK2シロップは赤ちゃんに不要?
Original review summary
The review says K2 syrup is used to prevent vitamin K deficiency and bleeding in newborns, and that newborns may not obtain enough vitamin K from food or breast milk. It also reports that the syrup’s additives have been assessed for safety by PMDA.[S1]
Additional context
The review notes that the image cited in the viral post came from the instructions for a different product, menatetrenone capsules, not K2 syrup. [S1]
Research date:
Sources and attribution
- [S1] 日本ファクトチェックセンター original review
Original review · Retrieved October 16, 2026