“Low-glycemic diets have been shown to be beneficial to acne-prone skin,” says registered dietitian and nutrition expert Alex Caspero, “There are some studies that do not show an association with acne, insulin levels and glycemic loads, but I see consistently positive results in my clients. In my practice, I usually recommend reducing sugar as much as possible. I replace refined, sugary foods with nutrient-dense foods- like fruit, vegetables and healthy sources of Omega-3.”