The role of eating vitamin A:

1, to prevent night blindness and vision loss, help in the treatment of a variety of eye diseases (vitamin A can promote the formation of photoreceptor pigments in the eye);

2, there is anti-respiratory infections;

3, contributing to the normal functioning of the immune system;

4, get well soon in case of illness;

5. It can maintain the health of the surface layer of tissues or organs;

6. It helps to get rid of age spots;

7. It promotes the development, strengthens the bones, and maintains the health of the skin, hair, teeth, and dental bed.

8. It can treat dry eye disease, corneal softening disease and dry skin. In addition, it is also effective for burns, frostbite and ulcers.

Vitamin A content of food: spinach, carrots, apricots, red peppers, egg yolks, cod liver oil, tomatoes, pumpkin, pork ribs, animal liver.

Overconsumption of vitamin A can cause toxic syndrome. According to research, infants and young children taking vitamin A, such as a dose of more than 300,000 international units will cause acute poisoning. Taking 50,000-100,000 international units per day for about 6 months, chronic poisoning can occur.

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Expanded Information:

Consequences of Vitamin A Deficiency:

1, in severe cases, can produce night blindness;< /p>

2, can lead to a decline in cellular immunity;

3, the skin is easy to dry, keratinization hyperplasia, flaking and the emergence of nails with multiple lines, loss of luster, locusts folding and cracking, dry and brittle hair is easy to fall off and other symptoms.

4, vitamin A deficiency when osteoblasts and osteoclasts between the balance is disrupted, or due to the osteogenic activity to enhance the over proliferation of bone, or so that has been formed by the non-resorption of bone. Pregnant women who are deficient in vitamin A will have a direct impact on the development of the fetus.

/baike.baidu.com/item/%E7%BB%B4%E7%94%9F%E7%B4%A0A/192716?fromtitle=%E7%BB%B4%E7%94%9F%E7%B4%A0%EF%BC%A1&fromid=1230649 &fr=aladdin "target="_blank "title="Only support works when a link is checked">Baidu Encyclopedia - Vitamin A