# Vitamin A May Help Explain the Link Between Metabolic Syndrome and Hearing Loss

*Association between metabolic syndrome and hearing loss: The mediating role of retinol - A cross-sectional analysis of NHANES 2007 to 2018 (excluding 2013-2014).*

- **Evidence Level**: Preliminary
- **Publication Types**: Journal Article
- **Journal**: Medicine
- **Sample Size**: 8,759 adults, average age 49
- **Authors**: Mao L, Pan Z, Hu W, Dai H, Chen X
- **Published**: 2026-06-05
- **Topics**: vitamin A, hearing loss, metabolic syndrome
- **DOI**: https://doi.org/10.1097/MD.0000000000049234
- **Original Source**: https://pubmed.ncbi.nlm.nih.gov/42260793/

## Summary

Adults with metabolic syndrome (high blood pressure, blood sugar, and belly fat together) tended to have slightly worse hearing. In this look at nearly 9,000 American adults, retinol (vitamin A) seemed to play a protective role in the inner ear. The hearing difference was small, and this only shows a link, not cause and effect.

## Practical Takeaway

This study suggests vitamin A may matter for inner ear health in people with metabolic syndrome.

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