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Vitamin C plays a vital role in protecting the body's cells from oxidative damage. Unlike some nutrients that can be stored for later use, Vitamin C must be regularly replenished through the foods we eat. It serves as a key component of the body's antioxidant defenses, helping to limit cellular wear and tear caused by oxidative stress. The brain is especially prone to oxidative stress, making dietary sources of Vitamin C an important part of maintaining a healthy neurological environment.
As we age, our brains undergo natural structural and connectivity changes. According to a recent study, lower plasma vitamin C concentrations correlate with reduced gray matter volume and diminished brain connectivity during the aging process. Previous research regarding vitamin C’s role in brain aging is based on dietary assessments rather than direct measurements of blood levels. This study examined whether plasma vitamin C levels in older adults are independently linked to brain volume and connectivity in memory and attention networks.
Researchers analyzed blood samples and MRI scans from roughly 2,000 Japanese adults aged 65 and above. Blood plasma vitamin C concentrations were measured alongside gray matter and white matter brain volumes in the participants. After adjusting for factors such as age, physical activity levels, and education, they found that participants with lower plasma vitamin C levels had smaller gray matter volume and reduced connectivity in the default mode network.
These results indicate that vitamin C may support brain function and help slow cognitive decline. Importantly, the findings reveal only an association between plasma vitamin C levels and brain health, rather than establishing causation. The importance of this study is that maintaining sufficient vitamin C could help reduce declines in cognitive abilities and preserve brain network function.
To view the original scientific study click below:
Plasma vitamin C levels are associated with brain structural networks on MRI: A large cohort study
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