At the University of Miami Miller School of Medicine, a group of researchers found that the consumption of pure chocolate made of 100% cocoa can exacerbate facial acne vulgaris within days in people who are acne prone.
The study was limited to males because the researchers did not want confounding influences of female hormones, which may affect acne around the menstrual cycle.
Men in this study consumed 6 ounces of 100% Ghirardelli chocolate (dark chocolate), which they washed down with a glass of water. And they maintained their usual diet for 1 week.
The study found a strong correlation between the amount of chocolate that was consumed and the amount of acne lesions that developed …