Wrinkles are the archenemy of women's beauty, and many middle-aged and elderly women are confused by this. In fact, in our daily life, as long as we pay attention to dietary adjustment, it is possible to delay the appearance of wrinkles. Protein is the "building material" of the human body and one of the three major nutrients. Regular consumption can promote the growth of subcutaneous muscles, making them plump and elastic. This has a good effect on preventing skin sagging and delaying aging. Therefore, it is advisable to consume more high-protein foods in daily life, such as lean meat, fish, milk, and soy products. Foods rich in vitamin E, such as vegetable oil, sesame, walnuts, etc. The vitamin E in this type of food can prevent the oxidation of subcutaneous fat, enhance the vitality of tissue cells, and make the skin smooth and elastic. Fat is a major taboo in people's diets nowadays, but in fact, it is not necessary at all. Moderate consumption is not only beneficial to health but also helps slow down the appearance of wrinkles. In daily life, it can be observed that wrinkles appear on the faces of overweight people later, while those of thin people appear earlier. This is because overweight people have more subcutaneous fat than thin people, which makes the skin spread out and reduces wrinkles. Foods with high fat content include vegetable oil, animal oil, peanuts, walnuts, etc. Human skin is composed of the epidermis, dermis and subcutaneous tissue. The dermis mainly affects the appearance of the skin. The dermis is composed of elastic fibers, and chondroitin sulfate constitutes the most important substance of the elastic fibers. Eating chicken skin, shark fin, salmon heads and chicken at the right time can delay the formation of wrinkles and make the skin smooth and supple. Foods such as pig's feet, animal tendons and pigskin contain the most of these two types of protein. The fish, meat, poultry, eggs, grains and other foods we consume in our daily life are all physiologically acidic. After acidic foods enter the body, they will increase the lactic acid content in the blood and body fluids. When lactic acid cannot be excreted from the body in time, it will erode the sensitive epidermal cells, causing the skin to lose elasticity and develop wrinkles. To neutralize the acidic components in the body, one should often consume alkaline foods in daily life, such as apples, pears, milk, almonds, chestnuts, potatoes, etc.