Daily Peanut Consumption Boosts Memory and Brain Blood Flow in Older Adults
A recent study revealed that eating peanuts every day may significantly improve memory and boost blood circulation in the brain for older adults in just four months.
According to the research findings, adults who consumed 60 grams of unsalted, roasted peanuts with their skins daily for 16 weeks experienced a 5.8% improvement in verbal memory.
Experts explain that peanuts are rich in L-arginine, an amino acid that helps increase blood flow to the brain. Peanut skins also contain powerful bioactive compounds that support brain cell protection and overall cognitive health.
The study involved 31 healthy adults between 65 and 75 years old who had no history of heart disease, diabetes, peanut allergies, or smoking. During the intervention phase, participants ate 60 grams of peanuts daily for 16 weeks. In the second phase, they completely avoided peanuts and all nut-based products for another 16 weeks, with an 8-week break between phases.
Researchers used non-invasive brain imaging to measure blood flow and conducted computerized cognitive tests to assess memory, thinking speed, and problem-solving abilities. They also monitored blood pressure and dietary habits.
Results showed that overall brain blood flow increased by 3.6%, while blood flow in the gray matter rose by 4.3%. Key brain regions responsible for memory and language also displayed noticeable improvements.
Participants performed better on memory tests, recalling more words after a 20-minute delay compared to the period when they avoided peanuts.
The study highlights that adequate blood flow is essential for delivering oxygen and nutrients to brain cells, helping keep the mind active, sharp, and healthy as people age.
