Many other deficiencies cause pimples—for example, vitamin D and zinc. When the body lacks these nutrients, it can increase acne breakouts or make them worse! If you suspect your diet lacks specific vitamins or minerals, consider speaking to a doctor about getting tested for low levels. They can guide what supplements you might need to take and how much of these nutrients your body needs. Moreover, they can also guide whether or not you need to adjust your diet. For example, the doctor may recommend that you eat certain foods more often if they are lacking in your current meal plan!