Eat more Vitamin A. Since your skin is basically composed of Retinol, which is Vitamin A, this will help keep your skin healthy and strong. If you feel your skin is weak or not tight enough, that usually suggests a lack of Vitamin A.
Foods that are high in Vitamin A include nonfat milk, oysters, and egg yolks. [1] You can also get Vitamin A by eating foods that are high in beta carotene, which will help minimize the effects of sun damage to your skin. These include carrots, watermelon, papaya, tomatoes, or other dark colored produce.