Written by Dr. Jeffrey Peng, MD — Board-Certified Sports Medicine Physician Published: March 3, 2026 | Last Updated: March 3, 2026 Can a daily multivitamin actually slow brain aging and improve memory? According to a landmark clinical trial, the answer is yes — but the details matter. Not all vitamins produce the same cognitive benefits, and understanding which formulation was studied (and what it actually improved) is critical for making informed decisions about brain healt