Diet Staple Speeds Brain Aging by 1.5 Years

A popular diet staple accelerates brain aging by up to a year and a half, new research warns. Meanwhile, the green Mediterranean diet counters this trend, with its emphasis on walnuts, green tea, and Mankai leafy greens slashing levels of galectin-9 and decorin proteins tied to cognitive decline. Participants following this polyphenol-packed plan show better insulin sensitivity, lower inflammation, and preserved brain structure after 18 months.