Decrease vitamin C ranges have been linked to decreased mind quantity and weaker neural connectivity in older adults, suggesting a possible connection between diet and mind well being.
May a typical vitamin assist protect the mind as we age?
A brand new research of greater than 2,000 older adults in Japan discovered that folks with decrease ranges of vitamin C of their blood tended to have much less grey matter and weaker connectivity inside a key mind community linked to reminiscence and a spotlight. The findings, printed in PLOS One by researchers led by Haruka Nagaya of Hirosaki College, add to rising proof that diet could also be tied to mind well being in later life.
Vitamin C is finest identified for supporting immune perform, but it surely additionally acts as a robust antioxidant and performs essential roles in defending nerve cells from oxidative stress. Earlier research have steered that diets wealthy in vitamin C are related to a decrease danger of cognitive impairment in older adults. Nonetheless, few research have immediately examined whether or not vitamin C ranges circulating within the blood are associated to measurable variations in mind construction and communication between mind areas.
To analyze, the researchers analyzed magnetic resonance imaging (MRI) scans and blood plasma samples from 2,044 Japanese adults aged 64 and older. They measured the amount of grey and white matter all through the mind whereas accounting for variations in total mind dimension.
The crew additionally examined connectivity throughout the default mode community, a set of interconnected mind areas that continues to be lively throughout internally targeted thought and is concerned in features reminiscent of reminiscence, self-reflection, and a spotlight.
Decrease Vitamin C Related With Decreased Grey Matter and DMN Connectivity
After adjusting for elements that may affect mind well being, together with age, bodily exercise, and schooling degree, the researchers discovered that contributors with decrease plasma vitamin C ranges usually had much less grey matter and weaker connectivity throughout the default mode community.
The outcomes increase the likelihood that sustaining wholesome vitamin C ranges might assist assist cognitive perform and scale back age-related cognitive decline. Nonetheless, the research doesn’t set up a cause-and-effect relationship between vitamin C and mind well being. Further analysis shall be wanted to make clear the organic processes behind these associations.
The researchers additionally counsel future research ought to monitor vitamin C ranges over longer intervals, take into account a broader vary of way of life and dietary elements, and embody contributors from extra numerous ethnic and socioeconomic backgrounds.
Default Mode Community Findings and Cognitive Well being Implications
Tomohiro Shintaku provides, “Our research demonstrates that increased plasma vitamin C ranges are related to higher preserved structural connectivity of the default mode community (DMN), a key mind community concerned in cognitive perform. This discovering generates the thrilling speculation {that a} weight loss plan wealthy in vitamin C may play a supportive position in sustaining mind well being and mitigating age-related cognitive decline in older adults.”
“What I discovered most fascinating about this analysis is that we have been capable of detect these refined however important associations between a single dietary issue and large-scale mind networks by using a sturdy, community-based cohort of over 2,000 older adults. It actually highlights the potential affect of our on a regular basis dietary habits on our mind buildings.”
Reference: “Plasma vitamin C ranges are related to mind structural networks on MRI: A big cohort research” by Haruka Nagaya, Keita Watanabe, Tomohiro Shintaku, Miho Sasaki, Jusei Kudo, Sera Kasai, Yuka Ishimoto, Kana Saito, Shuichi Matsuhashi, Taiki Koshiishi, Mizuki Imura, Amo Ozawa, Saaya Mori, Daisuke Watanabe, Shin Shukunobe, Tatsuro Sasaki, Soichiro Tatsuo, Shinya Kakehata, Tatsuya Mikami, Daichi Kokubu, Yusuke Ushida and Shingo Kakeda, 10 June 2026, PLOS ONE.
DOI: 10.1371/journal.pone.0348504
The funder (KAGOME CO., LTD.) offered assist within the type of salaries for authors D.Okay. and Y.U., however didn’t have any extra position within the research design, information assortment and evaluation, resolution to publish, or preparation of the manuscript. Moreover, this analysis was supported by the Japan Company for Medical Analysis and Growth (AMED) underneath Grant Numbers JP16dk0207025 and JP21dk0207053.
