Polyphenol consumption (IMAGE) University of Barcelona Caption The research analysed the results of more than 1,300 adolescents taking part in the SI! Program in 24 secondary education schools from Madrid and Barcelona (Spain). Credit Public domain 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.