an introduction
Vitamins are the most important elements that help the body to grow and fight harmful bacteria and viruses that may lead to human death and destruction of the body, and vary in vitamins according to the composition and amino acids in the composition, and there are many vitamins that benefit the human body, such as vitamin “D” and “B “And” B ” 12 “” K “and” A “, and here we will talk about vitamin” A “one of the strongest vitamins recommended by doctors, which have a significant impact on the health of pregnant women and face, skin and hair, what are the benefits of this vitamin? How to get it? What are the vegetables and fruits that contain this vitamin?
The most important types of vitamins in nature
- Vitamin C, and we can get it from tomatoes, lettuce, parsley, banana, strawberry, yogurt and liver.
- Vitamin A, and we can get it from all kinds of vegetables, liver, natural juices, melons and melons.
- Vitamin “D”, we can get it from early morning sunlight, milk, milk, fish and eggs.
- Vitamin B 1 “And we can get it from fresh legumes, fish and all kinds of vegetables.
- Vitamin B 2 “And we can get it from all kinds of meat, eggs, milk and milk.
- Vitamin B 3 “We can get it from the meat, potatoes, bread and cereals we eat at breakfast.
What is Vitamin A?
Vitamin A is a fat-soluble compound in the human body called Vitamin A. Its scientific name is Retinol, which gives the human body many medical benefits such as immunity to many diseases that infect various body organs, Pregnant in feeding the fetus, helping to divide the constituent cells of the brain and lungs, has a significant and important role in the production of white blood cells which are the main line of defense in the human body.
How to get vitamin “A”
Vegetables, fruits and meat are the natural source for vitamin A. We may not need pills and drugs to get this type of vitamin. We can get this vitamin through three main methods: animal sources, plant sources and medical tablets in pharmacies, animal sources Where we can get vitamin A and liver and milk, which is full of fat and eggs, and plant sources through which we can get the vitamin “A” carrots, melons and spinach, but medical disks must be used Here after taking the advice of a doctor is able to determine the quantity that must eat from those disks.
Benefits of vitamin “A”
- Vitamin A helps to strengthen eyesight, and doctors consider that one of the main causes of night sickness is vitamin A deficiency, so doctors advise people with the disease to eat foods that contain vitamin.
- Vitamin A strengthens bones in the body because it contains retinoic acid absorbed by bones. Failure to eat foods containing vitamin A may lead to osteoporosis and abnormal fractures.
- Vitamin A strengthens the main line of defense in the human body by helping to produce white blood cells, and plays a major role in maintaining skin, which is the first line of defense in the human body.
- Vitamin A helps prevent kidney stones because it contains calcium phosphate. These stones do not work. The stones in the kidneys cause a lot of pain and nausea to the affected person, which is forced to perform surgical procedures to dispose of them.
- Vitamin A helps strengthen the scalp, strengthening hair and hair loss. It also helps prevent hair and scalp dehydration. It also helps restore the natural hair color if it is lost due to many diseases and helps reduce the amount of scalp in the scalp.
- Vitamin A is one of the best treatments prescribed by doctors for a smooth, bright complexion. Vitamin A helps to eliminate it to some extent, which is one of the problems teenagers experience in adolescence.
- Vitamin A helps reduce wrinkles in the body, especially in the face, because it contains the carotenoids that play a major role in eliminating the oxidation occurring inside the body.
- Vitamin A also protects the eye from retinal degeneration, because it contains retinal material that enters and protects the eye membranes.
General symptoms of vitamin A deficiency
There are many symptoms associated with not eating enough vitamin A regularly, so doctors are advised to eat a good variety of vegetables, fruits and meats that contain this vitamin, while some people with anorexia and do not like to eat foods containing vitamin, doctors advise After eating the pills available in pharmacies and grocery stores after the medical consultation, not eating enough vitamin A may lead to insomnia and sometimes severe depression, which leads many to commit suicide or pain. Sudden symptoms or symptoms that appear on the body are some of the inflammation that occurs in the eyes accompanied by severe itching or inflammation of the eyelids, or some of the symptoms that appear on human skin such as wrinkles and acne, which may lead to mental diseases in those infected, and can cause Shortage of this vitamin is the crust in the scalp dramatically and that the hair shampoo can not eliminate, and may also happen some change in the tissues and cells of the human body.
Side effects of vitamin A supplementation
Doctors recommend eating certain amounts of vegetables, fruits, meat and tablets containing vitamin A and we will recognize these quantities later, so the lack of this vitamin or increase may lead to side effects affect the human body and lead to many diseases, the human body needs To a specific amount of this vitamin and the remainder of this vitamin it goes to the liver and lead to the accumulation of this vitamin over time, leading to many symptoms such as frequent vomiting, nausea and persistent hypertension, which is one of the main reasons with Farewell migraine, and it may cause increased vitamin “A” kidney failure, but this is rare.
Amounts needed by the body
The human body needs certain amounts of vitamin A as mentioned above. We should not increase or decrease the amount of this vitamin because of the symptoms that may result from this increase or decrease as mentioned above. Therefore, scientists have done some studies and research on these quantities Which we should take daily vitamin A, and here we will review some of these quantities, according to the United States Office of Food Supplements as follows:
- For infants from one year to one year, either male or female, vitamin A intake should not be less than 2000 IU.
- For children aged 1 to 3 years, whether male or female, vitamin A intake should not be less than 2000 IU.
- For children 4 to 8 years, whether male or female, vitamin A intake should not be less than 3000 IU.
- For children aged 9 to 13 years, whether male or female, vitamin A intake should not be less than 5600 IU.
- For children 14 to 18 years of age, whether male or female, vitamin A intake should not be less than 9000 IU.
- For persons over the age of 19, whether male or female, vitamin A intake should not be less than 10,000 IU.