The food does have an influence on acne?

It is unclear whether the food has an influence on acne. He arrived yet many of us to wake up with a button of acne, we have attributed the unusual consumption of food the day before (excess chocolate ...). Real simple coincidence or cause and effect relationship? In addition, some studies tend to show that a diet too rich could be a factor encouraging. However, most large-scale studies suggest that food is not really a cause of acne