# The Active Form of Folate Is Linked to Healthier Gums and Less Bone Loss

_Evidence Level: Preliminary · Yang L et al., Frontiers in nutrition, DOI 10.3389/fnut.2026.1851692_

*Targeting senescence with 5-methyltetrahydrofolate: a novel strategy to attenuate periodontitis.*

- **Evidence Level**: Preliminary
- **Why this grade**: Cross-sectional survey of 6,245 US adults with cell and mouse experiments, yet the treatment itself was tested only in gum cells and mice, not in people.
- **Facts**: Funding: The authors report no commercial or financial conflicts.
- **Publication Types**: Journal Article
- **Journal**: Frontiers in nutrition
- **Sample Size**: 6,245 US adults, plus human gum cells and mice
- **Authors**: Yang L, Zhang S, Zhang Z, Wang Y, Zhou H, Li Y, Tang J, Cao R
- **Graded and published**: 2026-08-04
- **Last edited**: 2026-09-17
- **Topics**: 5-MTHF, Folate, Senescence, Oral Health
- **DOI**: https://doi.org/10.3389/fnut.2026.1851692
- **Free full text**: https://pmc.ncbi.nlm.nih.gov/articles/PMC13481309/
- **Original Source**: https://pubmed.ncbi.nlm.nih.gov/42614234/

## Summary

People with more 5-MTHF (the active form of folate) in their blood were less likely to have gum disease. Part of that link ran through slower biological aging. In lab dishes and in mice, 5-MTHF calmed down senescent cells (worn-out cells that leak inflammation) and reduced jawbone loss. The human part is only a snapshot, so it can't prove folate caused the healthier gums.

## Practical Takeaway

This study suggests folate status may be associated with better gum health as we age.

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