Vitamins are a huge family. There are dozens of vitamins known at this stage, which can be roughly divided into two categories: fat-soluble and water-soluble. The source, physiological function and deficiency are now introduced as follows:
(1) Fat-soluble vitamins
1. Vitamin A. Its physiological function is to maintain the eye's vision in the dark; maintain the normal structure of the epithelial tissue; promote growth and development. Vitamin A deficiency can cause dry eye, night blindness, epithelial hyperplasia and other symptoms.
2. Vitamin D. Its physiological function is to promote the absorption of calcium and phosphorus in food; promote the growth and development of bones. Vitamin D deficiency can make children susceptible to rickets, and adults get osteomalacia.
3. Vitamin E. Its physiological function is to maintain normal reproductive function and prevent muscle atrophy. Lack of vitamin E is less likely.
4. Vitamin K. Its physiological function is to promote the synthesis of thrombin and the like in the liver. Lack of vitamin K, bleeding is not easy to stop bleeding, blood is not easy to coagulate.
(2) water-soluble vitamins
1. Vitamin B1 (thiamine). Its physiological function can promote the oxidation of sugar in the body and increase appetite. Lack of vitamin B1, easy to cause multiple neuritis, beriberi, gastrointestinal dysfunction.
2. Vitamin B2 (riboflavin). Its physiological function is a component constituting a yellow enzyme auxiliary group, which functions to transfer hydrogen during the biological oxidation process. Lack of vitamin B2, prone to keratitis, glossitis, keratitis, scrotal inflammation.
3. Vitamin PP (nicotinic acid and nicotinamide). Its physiological function is a component of the coenzymes I and II, which is necessary for intracellular respiration. Lack of vitamin PP can cause ecdysis, dermatitis, diarrhea and neuritis.
4. Pantothenic acid. Its physiological function is a component that constitutes coenzyme A. No deficiency has yet been discovered.
5. Vitamin B6. Its physiological function is a coenzyme component constituting an amino acid transaminase and a decarboxylase. No deficiency has been found and it can be used to stop vomiting.
6. Folic acid. Its physiological function is related to the maturity of the red ball. Lack of vitamin folic acid can cause giant red cell anemia.
7. Vitamin B12. Its physiological function is related to the maturity of the red ball. Lack of vitamin B12 can cause macrocytic anemia and pernicious anemia.
8. Vitamin C, also known as ascorbic acid. Its physiological function is involved in the formation of intercellular substance and cellular metabolism. Lack of vitamin C can cause bleeding gums, subcutaneous hemorrhage, and severe scurvy.
The following signs indicate the lack of vitamins in the body.
1. Rough skin
Lack of vitamins in the body can make the skin rough and even acne. At this time, regular, balanced eating habits should be maintained, and vitamins B, C, and E should be added in time. For example, eat more lean meat, fish, eggs, milk and other foods. When there are enough vitamins in the body, the capillaries can be opened smoothly, and the nutrients needed by the skin are continuously supplied to promote the growth of healthy and tender skin.
2. Oral ulcers
In daily life, oral ulcers are a relatively common oral disease and are usually closely related to the lack of vitamins in the human body. These vitamins are mainly vitamin B group, the most important of which is vitamin B2, and vitamin C, which should be replenished in time.
If you can't heal for a long time, you need to pay attention to the conditioning of your diet in your daily life. Try to keep a light diet, eat more easily digestible food, do not eat spicy, cold food, eat more fresh, fresh vegetables and fruits.
3. Hair loss is serious
Hair loss and hair loss are also manifestations of vitamin deficiency in the body. People who often lose hair loss may be caused by a lack of vitamin B7 in the body. Vitamin B7 is a nutrient necessary to maintain the body's natural growth, development and normal human function. In the absence of it, it is easy to cause neurological dysfunction, which will increase the amount of dandruff, hair loss, juvenile white hair and other symptoms.