What is vitamin A for?
Vitamins are very important for the human body. They help a person to be healthy and strong. In this article we will look at how it interacts with other substances and why our body needs vitamin A. It is a pale yellow color and was discovered by one of the first, back in 1920.
Vitamin A (retinol) is a fat-soluble element, an antioxidant, it improves eyesight, strengthens bones and promotes the proper functioning of the immune system. With it, your hair looks healthy, and your skin is always in excellent condition.
Vitamin A has a mass of beneficial properties. Why do we need this vitamin further? The presence of retinol in the body plays an important role in the growth of bones and teeth, normalizes metabolism, regulates protein synthesis, affects the formation of new cells, and most importantly, slows down the aging of a person.
Forms and sources of vitamin A
- The first form is ready-made vitamin A. The second is Carotene (provitamin A), which, when it enters the human body, is converted into retinol, therefore this form is also called plant.
- Products such as liver, fish oil, milk, butter, yolk are excellent sources of vitamin A. In beef and cereals, its amount is very small.
- Experts advise to use vitamin A - women 700 mg (2300 ME), men 900 mg (3000 ME) per day. For diseases associated with a lack of retinol in the body, the dosage can be added up to 10,000 IU per day.
Interaction with other drugs
- Vitamin E (tocopherol) does not allow vitamin A to oxidize in the intestine. If you do not have enough tocopherol, then retinol will not be absorbed in the body, so they should be consumed simultaneously.
- Lack of zinc disrupts the activity of vitamin A and leads to a low entry into the tissue. These two elements are dependent on each other, one helps to digest in the intestines of the other.
- Mineral oil, which is often taken as a laxative, dissolves such elements as beta-carotene and vitamin A. They easily pass through the intestinal tract, because they have already dissolved in the oil. But it is important to know that its systematic use leads to a deficiency in vitamin A.
- For excellent absorption of retinol, you need your food to be enriched as much as possible with ingredients such as fats and proteins.After all, the difference among food and mineral oil lies in the fact that the human body can absorb food fat along with vitamin A, which is already dissolved in it, but the oil product in the body is not absorbed.
Now you know what foods contain beneficial substances that dissolve better in the intestines and why every person needs vitamin A. Eat right and stay healthy!