# Vitamin D Deficiency Tied to Higher Diabetes Risk in Older Adults

*Relationship of vitamin D deficiency with prediabetes and diabetes in older adults.*

- **Evidence Level**: Moderate
- **Publication Types**: Journal Article
- **Journal**: Journal of diabetes and metabolic disorders
- **Sample Size**: 1,324 adults aged 60+
- **Authors**: Moodi M, Tiyuri A, Eshaghi S, Sharifi F, Tahergorabi Z
- **Published**: 2026-05-27
- **Topics**: vitamin D, diabetes, prediabetes
- **DOI**: https://doi.org/10.1007/s40200-026-01962-z
- **Original Source**: https://pubmed.ncbi.nlm.nih.gov/42220559/

## Summary

Among 1,324 adults over 60, about a quarter were vitamin D deficient and over half had either diabetes or prediabetes. Higher vitamin D levels were linked to lower odds of having worse blood sugar status. This is a snapshot study, so it cannot prove vitamin D causes the protective effect.

## Practical Takeaway

This study suggests maintaining adequate vitamin D may support healthier blood sugar in older adults.

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_Canonical: https://longevity-switzerland.com/en/research/vitamin-d-deficiency-tied-to-higher-diabetes-risk-in-older-adults · Part of Longevity Cities · Updated 2026-05-27_