There's some tantalizing news from Hull York Medical School. In a study, researchers found that eating dark chocolate reduced symptoms of fatigue in sufferers of CFS or Chronic Fatigue Syndrome, also known as ME.
CFS causes a range of symptoms including a feeling of great fatigue in muscles after physical exertion.
In the study, patients were given a daily dose of either dark chocolate or white chocolate dyed to look like dark chocolate for two months. The researchers then let another month pass before starting the patients on the other type of chocolate.
The results were that those eating dark chocolate reported less fatigue but when switched to the other type of chocolate, their complaints of fatigue increased. Researchers think that the high polyphenol content of dark chocolate may have an effect on levels of serotonin in the brain.
Professor Steve Atkin stated that more research is needed but that there was no harm in eating a small amount of dark chocolate. "If you derive benefit, then it's a no-harm, no-risk situation", he said.