Like mentioned earlier, eating a balanced, whole diet that includes: vegetables (especially dark leafy greens), fresh fruits, probiotic rich foods (kimchi, sour kraut, yogurts), fish/salmon, chicken, whole grains, beans, almonds, sweet potatoes, and seeds like flax, chia, pumpkin and sunflower. Also, ensuring that your body is well hydrated with water, herbal teas, and electrolytes is important.
There are also helpful herbal supplements and vitamins that may reduce acne, but it is best to consult with a provider for individual concerns.