A daily handful of peanuts may do more than satisfy hunger—it could enhance memory and increase blood flow to the brain, offering a natural alternative to drugs for age-related cognitive decline.
By yourNEWS Media Newsroom
Researchers at Maastricht University Medical Center in the Netherlands have discovered that eating 60 grams of unsalted, skin-roasted peanuts daily for 16 weeks significantly improved both memory and cerebral blood flow in older adults. The clinical trial, published in Clinical Nutrition, tracked 31 participants aged 60 to 75 and found a 5.8 percent improvement in verbal memory, accompanied by a 3.6 percent increase in overall brain blood flow. The gains were even more pronounced in brain regions associated with memory and language.
Lead researcher Dr. Peter Joris said the results confirm the vital role circulation plays in cognitive performance. “Adequate blood flow in the brain is important for the delivery of oxygen and nutrients to brain cells,” he explained. “Without enough oxygen and nutrients, the highly metabolically active brain cannot function properly, and key functions like memory can be affected.”
The study attributes these effects to peanuts’ rich nutritional composition. They contain L-arginine, an amino acid that supports vascular elasticity and enhances nitric oxide production, improving blood flow. Additionally, bioactive compounds and antioxidants in the peanut skins help protect neurons from oxidative stress, which contributes to age-related cognitive decline.
Equally notable, participants maintained stable body weight despite consuming roughly 340 extra calories per day from peanuts. Researchers believe this indicates a natural dietary compensation, suggesting the brain benefits can be achieved without weight gain.
The randomized, controlled crossover study design—where each subject served as their own control—strengthens confidence in the findings. Researchers say the results highlight how everyday foods can play a powerful role in maintaining mental sharpness, particularly as global dementia rates climb.
More than 13 million Americans are expected to live with Alzheimer’s disease by 2050, yet pharmaceutical interventions have largely failed to prevent or reverse the condition. This new evidence positions diet as a crucial preventive tool.
“Nutrition directly influences vascular health and neural function,” the authors concluded. “The brain is built and sustained by what we eat.”
For those seeking a practical step toward brain resilience, the answer may already be in the pantry. A small, consistent portion of skin-roasted peanuts could offer the mind the same protection that science once hoped to bottle—proving again that food is medicine, and simplicity can be profoundly effective.
Source: Natural News
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