Acne and oily skin can persist because they are almost always an internal, often nutrition as the root cause (poor gut health, hormone imbalances, candida, and yeast) are some of the internal issues. Then we exacerbated the skin by choosing the wrong skincare products and poorly compounded cosmetics. Diet is always a consideration; here is a list of foods that cause acne, fast food, dairy products, refined grains, sugar, candy, whey protein powder, to name a few.