Dietary flavanols restore hippocampal-dependent memory in older adults with lower diet quality and lower habitual flavanol consumption https://www.pnas.org/doi/full/10.1073/pnas.2216932120 Dietary intervention studies demonstrated that flavanol consumption can play a role in attenuating cognitive aging https://www.fr.de/ratgeber/gesundheit/demenz-vorbeugen-zwei-obstsorten-koennen-besonders-gut-helfen-zr-93289954.html