1. Romaine lettuce. Six romaine lettuce leaves provide the daily requirement of Vitamin A, which promotes cell metabolism. Additionally, the potassium in lettuce promotes blood circulation, allowing the skin to receive more nutrients.
2. Tomatoes. Lycopene in tomatoes protects collagen in the skin, preventing it from breaking down. German research has found that lycopene helps smooth wrinkles, making the skin delicate and smooth. Regularly eating tomatoes can also reduce dark circles under the eyes.
3. Strawberries. Vitamin C in strawberries promotes collagen fiber production, making the skin smooth and elastic.
4. Apples. The antioxidant quercetin in apple peels protects the skin from short-wave ultraviolet radiation. Therefore, on sunny days, in addition to applying sunscreen, consider eating an apple before going out.
5. Soybeans. Studies have found that women in their thirties and forties who regularly eat fermented soybeans (rich in soy isoflavone glycosides) experience improved skin elasticity.
6. Eggs. Studies have found that eggs are rich in lutein and zeaxanthin, which can increase the body's resistance to ultraviolet rays by four times.
7. Almonds. Eating a handful of almonds daily can increase vitamin E levels. Vitamin E can inhibit skin aging and prevent pigmentation.
8. Walnuts. Walnuts are rich in alpha-linolenic acid, which can moisturize the skin and maintain its elasticity.
9. Dark chocolate. The fat in cocoa can promote blood circulation. Studies have found that drinking half a cup of cocoa beverages (including dark chocolate) rich in flavonoids daily for 12 weeks can make the skin softer, smoother, and more moisturized.
10. High-quality extra virgin olive oil. A study published in *The Lancet Oncology* found that the essential fatty acids (EFAs) in healthy extra virgin olive oil help protect the skin from ultraviolet damage and help moisturize the skin. The human body cannot synthesize EFAs, so it is best to consume 1 tablespoon of olive oil daily.
11. Whole grains. The antioxidants in whole grains such as bread play an important role in protecting the skin. The body's natural antioxidants decrease with age, so they must be replenished through diet.
