The eye is the window of the human mind. It is a channel for observing and communicating with the outside world. Everyone wants to have a pair of black, shiny eyes, so pay attention to the intake of substances that are good for nutrition.
Nutritional care for adolescents' eyes
1. The formation of the eyeball is related to calcium. The eyeball of adolescents has not been shaped. For example, calcium deficiency, the elasticity of the eye sclera will decrease, and the crystal will elongate, which may develop into axial myopia. Should pay attention to the intake of foods containing more calcium, such as shrimp skin, kelp, soybeans, sesame sauce, milk and so on. The body's absorption of calcium is inseparable from vitamin D, so when you add calcium, you should also eat some foods rich in vitamin D, such as cod liver oil and cream.
2. When the body's chromium content decreases, the effect of insulin is significantly reduced, the plasma osmotic pressure rises, resulting in changes in the osmotic pressure of crystals and aqueous humor, the crystal becomes convex, and the increase in diopter causes myopia. Foods containing more chromium include semolina, rough processed sugar, vegetable oil, and grapes.
3. If the eye is deficient in vitamin A, it will affect the synthesis rate of rhodopsin, forming night blindness; it can also damage the tissue of lacrimal gland epithelial cells, reduce secretion, and cause dry eye disease. Eat foods rich in vitamins such as animal guts, egg yolks, butter, and milk. Vegetables such as carrots, rapeseed, cabbage, pumpkin; fruits such as apricots, persimmons and sweet sweet potatoes are rich in carotene, which can be converted into vitamin A after being absorbed by the body.
Nutritional health care for middle-aged and elderly people
1. When people reach old age, their vision gradually declines, mainly due to senile eye and cataract, which are caused by crystal aging. In order to prevent the occurrence of presbyopia and cataract, you should always eat foods rich in vitamin B1, such as various coarse grains, peanuts, soybeans, peas, lean pork, egg yolk, animal heart, liver, kidney and so on.
2. Vitamin B2 can maintain the normal metabolism of the retina and cornea, such as the lack of vitamin B2, the eyes will have tears, redness, itching, convulsions and other symptoms. Should eat more vitamin B2-rich milk, goat milk, lean meat, eggs, lentils, animal liver, kidneys and so on.
3. How much vitamin C intake in the diet can affect the transparency of the crystal. Lack of vitamin C is one of the main causes of senile cataract. Fresh fruits are rich in vitamin C, such as sea buckthorn, thorn pear, kiwi, jujube, fresh dates, hawthorn; vegetables are rich in vitamin C, such as rape, cabbage, coriander, tomatoes, chrysanthemum, spinach and so on.
4. Protein is an important part of the eyeball. If it is lacking, the eye tissue is prone to aging, dysfunction, and even blindness. Therefore, care should be taken to ensure the supply of protein in the diet. Animal proteins such as chicken, duck, fish, cattle, sheep, rabbits, pigs, milk, eggs, etc.; vegetable proteins such as soybeans and their products.
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