Relationship between diet nutrition and beauty health

Protein, fat, sugar, inorganic salts, trace elements, water, cellulose and other nutrients in food are essential nutrients for human health and facial beauty. The main source of these nutrients is food. Therefore, a comprehensive and reasonable intake of balanced nutrients from food is the most important material basis for beauty and fitness. On the contrary, if you don't pay attention to diet, such as dieting, partial eclipse, picky eaters and monotonous diet, all women want their skin to be moist, delicate, tender and elastic. However, some people's skin is unsatisfactory, rough and dull. Analysis of the reasons, on the one hand, is related to the influence of genetic factors and diseases, on the other hand, it is related to acquired nutrition and maintenance. Modern scientific research has found that the smoothness of skin is closely related to the content of hyaluronidase in dermis. Hyaluronase is closely related to the secretion of androgen. Scientists have recently found that when the estrogen secreted by the ovary increases, estrogen will combine with some specific receptors in the dermis, thus promoting the formation of aspartase. This enzyme can promote the skin to absorb moisture, trace elements, vitamins and other nutrients, making the skin moist, smooth and delicate. Water content: the water content of human tissue fluid is 72%, and that of adults is 58% ~ 67%. When the water content of human body decreases, it will make the skin dry and the secretion of sebaceous glands decrease, which will make the skin lose its elasticity and even wrinkle. Therefore, in order to ensure water intake, normal people should drink no less than 1000 ml per day. Potash-containing food: Potassium is essential for maintaining the pH of skin and body, maintaining the osmotic pressure in cells and normal metabolism. The daily potassium requirement of normal adults is 2 ~ 4g. Main food sources: bran, peas, soybeans, potatoes, sweet potatoes, radishes, pickled mustard tuber, peanuts, kelp, laver, dried pork floss, coffee and tea flavor. Foods containing vitamin A: Vitamin A can make eyes bright and skin moist and delicate. The main food sources: animal liver (dog liver should not be eaten too much), whole milk and its products, yellow-green vegetables, red sweet potatoes, carrots, green peppers, pumpkins and so on. Foods containing vitamin B2: Vitamin B2 is also called riboflavin. Its function is to maintain normal metabolism of skin, make skin smooth and delicate, smooth wrinkles, reduce pigments and eliminate spots. The main food sources: animal liver, kidney, lean meat, milk, eggs, soybeans and their products, and green vegetables. Foods containing vitamin B 1: Lack of vitamin B 1 can cause mucosal allergy and skin inflammation. The main food sources: animal offal, meat, beans, peanuts and brown rice. Drinking a lot of tea or overeating carp, herring and shrimp will affect the absorption of vitamin B 1. Foods containing vitamin C: Vitamin C is an antioxidant, which can reduce skin pigmentation and prevent melanin production, thus restoring the original white and smooth color of tanned skin. Excessive intake of vitamin C preparations can lead to stones or ulcers. The main food sources: oranges, oranges, pomelo, fresh dates, walnuts, strawberries, plows, cauliflower, lettuce leaves, lemons, tomatoes, hawthorn and various dark vegetables. Foods containing vitamin D: Vitamin D can prevent mild rickets in children and osteoporosis in middle-aged and elderly people. Main food sources: marine fish, animal liver and egg yolk, cream, cheese, cod liver oil, etc. Foods containing vitamin E: Vitamin E can improve the absorption rate of vitamin A, reduce and prevent the production and deposition of lipofuscin in the skin, prevent facial acne of teenagers, and have the functions of skin care, beauty care, anti-aging and longevity. The main food sources: vegetable oil, soybean and its products, mung beans, red beans, black sesame seeds, walnuts, duck eggs, garlic, spinach, crucian carp and shrimp. Foods containing fiber: Constipation can cause various symptoms and induce various diseases. Constipation can also make the face yellow and lose its due luster. Foods rich in cellulose can prevent constipation. Mainly: all kinds of vegetables, fruits and non-refined food. Foods rich in iron and zinc: ruddy skin, need plenty of blood. Iron is the main component of hemoglobin in blood. Zinc is also an indispensable trace element in the body and participates in various physiological activities of the human body. The content of zinc in skin is the highest, accounting for more than 20%, which determines the smoothness and elasticity of skin. There is a saying that "the skin is galvanized". Therefore, we should eat more foods rich in iron and zinc, such as animal liver, egg yolk, kelp, sesame paste, lean meat, oysters, seafood, etc., to promote skin fitness. Alkaline food: Rough skin is often caused by high blood acidity. Fish, meat, poultry, eggs and grains eaten in daily diet are all physiologically acidic. Physiological acidic food will increase the content of lactic acid and uric acid in the body and blood. When organic acids cannot be excreted in time, they will erode sensitive epidermal cells and make the skin lose its tenderness and elasticity. The content of alkaline inorganic salts in fresh vegetables and fruits is high, such as calcium, sodium, magnesium and potassium. Eating fresh vegetables often can make your body full of alkaline substances. The acidic substances in the body quickly neutralize and form non-toxic compounds to be excreted, which keeps the blood in an ideal weak alkaline state and keeps the skin smooth and moist. Therefore, we advocate a reasonable combination of vegetarian food and vegetarian food, and adjust the proportion of vegetarian food according to different age stages. Adults should be vegetarian in diet, get as much cystine and tryptophan as possible from plant protein to prevent skin roughness, keep the water content of skin at around 10%, delay skin aging and change skin roughness. Eat more physiological alkaline foods to make your skin smooth and beautiful. Foods containing collagen and elastin: collagen can make skin cells plump, thus making skin plump, reducing wrinkles and making skin delicate and shiny; Elastin can enhance the elasticity of human skin, thus making the skin smooth and elastic. Foods rich in collagen and elastin include pig's trotters, animal tendons and pigskin.