而在蛋白質組研究雜誌(Journal of Proteome Research, Published online ahead of print: DOI: 10.1021/pr900607v,” Metabolic Effects of Dark Chocolate Consumption on Energy, Gut Microbiota, and Stress-Related Metabolism in Free-Living Subjects”)的報告更說明,每天吃黑巧克力可減少焦慮者血液中的壓力激素。