Full Text December 1, 2019, Vol. 255, No. 11, Pages 1245-1254 Kimberly A.May, DVM, MS1 and Dorothy P.Laflamme, DVM, PhD1 1From the Purina Institute, Nestle Purina Petcare, 1 Checkerboard Sq, St Louis, MO 63102. (May, Laflamme) Address correspondence to Dr. May (Kimberly.May@rd.nestle.com). Many nutrients are critical for maintaining brain structure and function, including cognition. A deficiency of some nutrients can lead to compromised brain structure and function, which accelerates brain aging.