Study Links Higher Vitamin C Levels to Better Brain Health in Older Adults

A study published in PLOS One and reported by ScienceDaily found a link between higher blood vitamin C levels and better brain health in older adults. Researchers in Japan analyzed blood samples and MRI scans from over 2,000 people aged 64 and older. Those with lower vitamin C concentrations had reduced gray matter volume and less efficient connectivity in brain regions related to memory and attention. The association persisted even after adjusting for other factors. The study was led by Haruka Nagaya of Hirosaki University. The findings suggest that maintaining adequate vitamin C levels may support cognitive aging.

Global Impact

The study has moderate social and public health implications. If replicated, it could encourage dietary guidelines to emphasize vitamin C for older populations, potentially reducing dementia burden.