The study, published in Appetite, examined data collected during a previous study in which people were measured for dietary intake and risk factors for cardiovascular disease. Participants were also given a series of tests designed to measure cognitive function. 

"More frequent chocolate consumption was significantly associated with better performance on (tests, including) visual-spatial memory and organization, working memory, scanning and tracking, abstract reasoning and the mini-mental state examination," researchers said.

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Travelers walk around the baggage claim in the South Terminal at Hartsfield-Jackson Atlanta International Airport on Thursday, Nov. 6, 2025. Atlanta is among the airports where the FAA will reduce flights due to the shutdown, and airports are facing a shortage of air traffic controllers. 
(Miguel Martinez/ AJC)

Credit: Miguel Martinez-Jimenez