4. Apples

Diphenylamine is a strong skin irritant. This chemical can be found on the surface of 80% of non-organic apples. If you suffer from acne and redness, please opt for organic apples. In this case, instead of chemicals, you will provide your body with fiber, antioxidants, vitamins and minerals. And, which is not less important, apples are low glycemic and good and do not cause spikes in blood sugar levels.