Water is a natural beauty moisturizer. Among the components of the human body, water is the largest, accounting for about two-thirds of the body weight. People can go without food for seven days, but not without water for a day. If the body loses 20% of its weight, it cannot sustain life. Even a loss of 2% will interfere with normal physiological functions. Over time, it will accelerate the aging process of the human body. Drinking water can make skin cells full of moisture and elasticity, make skin tender and moist, and reduce brown fat and wrinkles. Especially in the old age, the secretion of sex hormones is reduced, the secretion of oil is insufficient, and the skin is more prone to dehydration, so it is necessary to develop a good drinking habit of "drinking without thirst". According to scientists' calculation, the daily water requirement of adults is 3000-3500ml, and besides getting about 1500ml from diet and self-metabolism, it is also necessary to supplement 1500-2000ml. Drink a glass of water every morning and before going to bed. Drinking water is not only for beauty, but also for weight loss. Drinking cold boiled water consumes more calories and the effect is more obvious. Pig skin, trotters and tails are rich in macromolecular collagen and elastin, which can be compared with bear's paw and have the reputation of "beauty food". Collagen can promote skin cells to absorb and store water, prevent skin from drying and wrinkling, and make skin plump, flat and smooth; Elastin can make skin blood circulation vigorous, provide sufficient nutrition, enhance skin elasticity and toughness, and make wrinkled skin wrinkles shallow or disappear. This beauty and skin care function of pigskin was recorded in Treatise on Febrile Diseases written by Zhang Zhongjing, a famous doctor in Han Dynasty more than two thousand years ago: "Pigskin has the function of regulating blood circulation and moistening skin" and "making young women eat it, preventing old age and resisting aging." Nuts such as walnuts, pine nuts, bonzi, peanuts and sesame seeds are rich in vitamin E. Vitamin E is an effective antioxidant, which can prevent excessive oxidation of unsaturated fatty acids in the body, prevent premature aging spots (longevity spots) on the skin, effectively prevent brown pigments from depositing on the skin, and prevent brown spots and plaques on the face. Vitamin E can also promote cell division and regeneration, delay cell aging and restore skin elasticity. Nuts contain a variety of amino acids, vitamins A, D, K, iron, phosphorus, zinc, manganese and so on. It can greatly promote the growth of hair and nails, prevent hair loss and premature gray hair, and prevent dry and rough skin and premature aging. Fresh jujube contains a lot of vitamin C, which is an effective antioxidant. It can not only maintain the elasticity of skin, but also inhibit and block the formation of melanin in skin. There are many melanocytes in the skin, and the skin color is dark. Usually, eating more fresh fruits and vegetables rich in vitamin C and eating less salt can reduce or disappear calm spots. Sweet potato contains a substance similar to estrogen and vitamin E, which can effectively keep skin smooth and delay aging if eaten regularly. At the same time, it contains a lot of mucin, which can promote health, prevent fatigue and make people energetic. Sweet potato also contains a lot of cellulose, which can inhibit the conversion of sugar into fat and is an ideal diet food. Livestock and poultry liver is rich in vitamin A, which can lubricate and strengthen the skin and prevent the occurrence of rough and scaly skin, dry eye, corneal ulcer and angular stomatitis. Cucumber is called "natural beauty food" abroad. Regular consumption can make skin tender, slim, light and healthy. Cucumber is rich in malonic acid, which can prevent sugar in the body from being converted into fat and digest excess fat in the body. Apples not only contain more carotene, vitamins B and C, but also contain more magnesium, which can make people's skin healthy, ruddy and shiny, and can also remove chloasma and butterfly spots on their faces. Kelp is rich in iron, which can prevent iron deficiency anemia, make people ruddy and beautiful, and prevent iron deficiency baldness; Rich in iodine, it can prevent and treat "thick neck", promote metabolism, accelerate the renewal of human tissues, and make people look young and refreshed. Fat and fat are mainly distributed in girls' breasts and buttocks, which constitute the unique curvaceous beauty of women and reflect the youthful vitality of modern women, making them more and more beautiful. Subcutaneous fat can make skin smooth and wrinkle-free, elastic but not soft. Insufficient fat intake will make people's skin dry, rough and dull, giving people the feeling of aging before they get old. Wax gourd has always been considered as a good product for weight loss and beauty. "Compendium of Materia Medica" says that wax gourd "has good color, benefits qi and is not hungry, and long-term service can make the body fit and resist aging". Wax gourd contains trigonelline and propanol diacid, the former can accelerate human metabolism, and the latter can prevent sugar from transforming into fat, thus achieving the effect of losing weight. Fig contains 17 kinds of essential amino acids, among which anti-fatigue aspartic acid has the highest content, and contains a superoxide dismutase, which has the effects of delaying aging and prolonging life: its roots, stems and leaves are decocted in water and washed outside, and it has the beauty effects of treating tinea, moles and freckles and lubricating skin. Onion is rich in vitamin C and nicotinic acid, which can promote epidermal cells to absorb oxygen in blood, facilitate the formation of intercellular matrix and enhance the regeneration ability of cells, and keep skin fair, plump and smooth. In addition to regular consumption, you can also wash half an onion, soak in a bowl of water, and wash your face with this water before going to bed, which can achieve the effect of beauty. Silkworm contains many vitamins, 10 amino acids, calcium, phosphorus, iron, copper, zinc and so on. Has the effects of nourishing liver and kidney, nourishing yin and blood, blackening hair, improving eyesight, eliminating diseases and prolonging life. Silkworm can also improve the activity of enzymes in human body and delay cell aging. Oysters contain a substance called pantothenic acid, which can make hair thick, dark and shiny and prevent premature gray hair; It also contains copper and B vitamins, and can prevent premature graying and withering of hair. Sure, what food do you eat for beauty? What beauty foods are there? Foods that can play a cosmetic role are not limited to those listed above, and there are many simple beauty methods in life.