Metabolomics (IMAGE) University of Barcelona Caption The study reveals a protective association regarding cognitive impairment of metabolites derived from cocoa, coffee, mushrooms, red wine and polyphenol-rich foods, and a detrimental role for artificial sweeteners. Credit UNIVERSITY OF BARCELONA Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.