# Probiotics Plus Vitamin D Linked to Remission in a Painful Mouth Condition

*Effects of Probiotics and Vitamin D Deficiency Correction on Clinical, Inflammatory, Metabolic, and Microbiota Profiles in Older Adults with Oral Lichen Planus: A Multi-Omics Study.*

- **Evidence Level**: Preliminary
- **Publication Types**: Journal Article
- **Journal**: International journal of molecular sciences
- **Sample Size**: 25 adults with oral lichen planus, median age 68
- **Authors**: Zanetta P, Calgaro M, Mellai M, Vignoli A, Marotta M, Vitulo N, Tenori L, Manfredi M, Barberis E, Migliario M, Armari M, Caneparo V, Squarzanti DF, Allesina M, Amoruso A, Pane M, Azzimonti B
- **Published**: 2026-07-27
- **Topics**: probiotics, vitamin D, oral health
- **DOI**: https://doi.org/10.3390/ijms27156707
- **Original Source**: https://pubmed.ncbi.nlm.nih.gov/42589365/

## Summary

Oral lichen planus is a chronic inflammatory condition in the mouth that is hard to treat and carries a small cancer risk. In 25 mostly older adults, 16 weeks of a three-strain probiotic blend, plus vitamin D3 for those who were deficient, came with fewer and smaller lesions. About three quarters were rated as in remission, and gut and saliva chemistry shifted too. There was no control group, so we cannot say the supplements alone caused the improvement.

## Practical Takeaway

This study suggests probiotics and vitamin D deserve testing for oral inflammation in larger controlled trials.

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_Canonical: https://longevity-switzerland.com/en/research/probiotics-plus-vitamin-d-linked-to-remission-in-a-painful-mouth-condition · Part of Longevity Cities · Updated 2026-07-27_