foods that contribute to acne
1 Drugs containing corticosteroids, androgens or lithium can worsen acne.  Diet. Studies indicate that certain dietary factors, including dairy products and carbohydrate-rich foods â such as bread, bagels and chips â may trigger acne. Chocolate has long been suspected of making acne worse. A recent study of 14 men with acne showed that eating chocolate was related to an increase in acne.