Study protocol for design of a personalized dietary supplement based on the gut microbiota of Alzheimer's patients and evaluation of its effects in a pilot randomized controlled trial - Clemente-Velasco, Sara; de Lucas, Beatriz; Tabone, Mariangela; Bressa, Carlo; Gonzalez-Soltero, Maria del Rocio; Martinez-Lopez, Sara; Bailen, Maria; Dominguez-Balmaseda, Diego; Castellanos, Nazareth; Diez, Gustavo G; Noguera-Perea, Fuensanta; Marin-Munoz, Juan; et al. (FRONTIERS IN NUTRITION, 2025)