1 vitamin A, a food rich in vitamin A, is beneficial to the proliferation of epithelial cells, can prevent keratinization of hair follicles, eliminate acne, regulate the function of sweat glands of skin, and reduce the erosion of epidermis by acidic metabolites. Foods rich in vitamin A include animal liver, cauliflower, day lily, carrot, sweet potato, green leafy vegetables, chestnuts, tomatoes and pumpkins.

Vitamin B2, a food rich in B vitamins, can promote the biological oxidation process of cells and participate in the metabolism of sugar, protein and fat. Vitamin B6 participates in the metabolism of unsaturated fatty acids and should be taken in moderation. Foods rich in B vitamins include pig liver, beef liver, eggs, vegetables and walnuts.

Zinc-rich food zinc can also control the secretion of sebaceous glands and reduce cell shedding and keratinization. Foods rich in zinc include lean meat, liver, corn, lentils, peas, mung beans, radishes, eggplant and Chinese cabbage.

4 Cool and heat-clearing foods Most acne patients have symptoms of excessive internal heat and excessive internal heat. They should eat more cool and heat-clearing foods, such as ducks, mushrooms, fungus, celery, rape, bitter gourd, loofah, wax gourd, tofu, lotus root, watermelon, pear, hawthorn and apple.