Hello everyone, today I will answer the question of vitamin A. Many people don’t know what vitamin A is. Let’s take a look together now!
Contents of this article
- What are the foods with vitamin A
- The alias of vitamin A
- The concept and physical and chemical properties of vitamin A
- Daily intake of vitamin A
- Introduction to vitamin abcd
- What is vitamin A
1. What are the foods containing vitamin A
There are many foods containing vitamin A, such as pork liver and sheep liver, vegetables including carrots and broccoli, and fish. Category and milk, eggs, fruits such as cantaloupe, pears, apples, etc., these must be combined reasonably.
2. The alias of vitamin A
The alias of vitamin A is Vitamin A, retinol, anti-eye alcohol. Vitamin A is a fat-soluble vitamin, an organic compound with the chemical formula C20H30O. It is stable to heat, acid, and alkali, and is easily oxidized. Ultraviolet rays can promote its oxidative damage. Vitamin A includes A1 and A2. A1 is retinol, and vitamin A2 That is, 3-dehydroretinol, whose physiological activity is 40% of vitamin A1.
3. The concept and physical and chemical properties of vitamin A
About this Question, Vitamin A is a fat-soluble vitamin also known as retinol. It plays important biological roles in the human body, including maintaining normal vision, maintaining skin and mucous membrane health, and participating in the function of the immune system.
The chemical formula of vitamin A is C20H30O, and its molecular weight is 286.45g/mol. It is a yellow crystal or oily substance, insoluble in water, and easily soluble in organic solvents such as ethanol, ether and oily substances. Vitamin A is unstable under light and is easily oxidized, so it needs to be stored in a cool, dry, and dark place.
4. Daily intake of vitamin A
Daily intake of vitamin A The daily intake is 75,000 units to 150,000 units. Vitamin A\’s sensitivity to low light is related to the dark vision function of the human eye and can maintain the integrity and soundness of the epithelial tissue structure. Clinically used for vitamin A deficiency, such as night blindness, dry eye, corneal softening, etc. Vitamin A and its derivatives can effectively prevent and treat tumors induced by various chemical carcinogens.
5. Introduction to vitamin abcd
1. Vitamin a is also It\’s called carotene. The main function is to promote human growth and increase resistance. There are many types of Vb. B1, which is closely related to the human body, can promote appetite, and B2 can maintain the health of neurodigestive and visual organs. B6 can promote the metabolism of amino acids and fats.
2. VC is also called ascorbic acid. Its main function is to maintain the normal function of the linkage tissue between human cells.
3. The main function of Vd is to promote calcification of the human body and promote the normal development of dental bones.
6. What is vitamin A
1. It comes from Animal foods and plant foods are important fat-soluble vitamins.
2. It can be used to protect and maintain the physiological mechanism of the eyes and skin to achieve good results.
The sharing of vitamin A and what is vitamin A is over. Did the above article solve your problem? Welcome to come again next time!
