Scientists Say This 1 Vitamin May Protect Your Brain as You Age

Key Points:

• A study published in PLOS One analyzed blood samples and MRI scans from 2,044 older adults, finding that higher blood levels of vitamin C were linked to greater gray matter volume and better connectivity in the brain's default mode network.
• Gray matter is crucial for cognitive functions such as memory, attention, language, and decision-making, and its preservation is associated with reduced risk of aging-related brain decline and diseases like Alzheimer's.
• Vitamin C acts as a key antioxidant in the brain, helping to protect brain cells from damage, support neurotransmitter production, and maintain healthy cell membranes, with the brain concentrating vitamin C at higher levels than in the bloodstream.
• While the study shows an association rather than causation, experts recommend consuming a vitamin C-rich diet—including foods like oranges, guava, bell peppers, strawberries, and leafy greens—to support long-term brain health.
• Maintaining brain health also involves other lifestyle practices such as regular exercise, quality sleep, stress management, and blood pressure control alongside adequate vitamin C intake.