"Daily Fiber Supplement Boosts Brain Function in Older Adults, Study Finds"

A study published in Nature Communications found that a daily fiber supplement, specifically a prebiotic, led to significant changes in the gut microbiomes of older adults, resulting in improved brain function after just 12 weeks. The supplement increased the number of beneficial bacteria in the gut and improved performance in tests assessing cognitive function. The research suggests that maintaining a healthy gut microbiome through fiber intake may be key to improving age-related changes in cognition, and experts recommend aiming for 25-30 grams of fiber a day through whole grains and fruits and vegetables for better brain health later in life.