5 Benefits Of Vitamin A According To Science

It is known that vitamin A is one of the many nutrients essential to maintain a healthy human. Among the functions of vitamin A are to protect the immune system, prevent vision loss, protect organs, improve the condition of hair, nails and skin, and, when you are pregnant, ensure proper development of the fetus.

It is vital to know that vitamin A is divided into two groups: those from foods of animal origin, known as preformed vitamin A, and those acquired by vegetables, commonly called provitamin A or carotene.

Beyond all this, do you really know why consuming vitamin A is so necessary? Discover 5 benefits of this vitamin according to science

5 Benefits of vitamin A

1.Protects you from eye problems

One of the most recognized benefits of vitamin A is that it helps you preserve vision, prevent eye problems such as cataracts or glaucoma, and cure infections such as conjunctivitis.

The first symptom of vitamin A deficiency is suffering from nictalopia, that is, night blindness, so you must ensure that you consume the proper dose of vitamin A. Nor should you trust yourself if you see perfectly during the day, as you can only be aware of night blindness if you cannot capture the light at lower levels.

Have you heard that the carrot helps to have good night vision? This is because its main content is beta-carotene, one of the components that helps reduce advanced macular degeneration.

2.It can prevent some types of cancer

Another function of vitamin A is to allow the growth and development of cells, which is why it is not surprising that they prevent some types of cancer, such as lung, stomach, bladder, cervix, and Hodgkin’s. , to help improve patients with leukemia during their treatment with chemotherapy.

In this sense, it is advisable to ingest more vitamin A from the vegetable kingdom, due to the fact that greater benefits are obtained than from animal origin and supplements; there are even studies that show that smokers who took vitamin A supplements had a higher risk of lung cancer. Therefore, the natural consumption of this vitamin is recommended.

3.Strengthens the immune system

The Vitamin A helps fight infection and disease, supporting in the production of antibodies and defense and intervening in the manufacture of membranes from infections in the lungs and digestive tract.

By maintaining the body’s natural defenses, vitamin A participates in the production of white blood cells, whose function is to eliminate bacteria, create mucous barriers in the eyes and protect the intestines and genitals; It even helps reduce the risk of dying from diseases such as measles or malaria.

4.Help protect the bones

Apart from vitamin D and calcium, vitamin A also has a leading role in bone health, as it helps to grow and strengthen bones, including teeth.

You must be aware that if you have deficiency of these three nutrients, or on the contrary, you have a high amount of vitamin A in your bloodstream, you are more likely to suffer fractures compared to people who do have an adequate level.

5.Improves sexual reproduction and ensures healthy growth

The benefits that vitamin A provides to maintain the healthy reproductive system of men and women are considerable, since it allows good sperm production and favors the menstrual cycle. Also, if you are pregnant, it guarantees the healthy growth of the fetus.

During pregnancy, the usefulness of this nutrient is to contribute to the development of the tissues of the fetus, as well as the organs, bone structure, nervous system, eyes, pancreas, kidneys, and lungs of the baby. However, it is very important that you know that if you have altered levels of vitamin A it can be counterproductive and cause congenital defects or malformations in the fetus, or even loss of it. 

Dangers of taking too much vitamin A

Taking too much vitamin A or retinol can cause headaches, nausea, fatigue, or constipation; it is often confused with the symptoms of a brain tumor. Therefore, keep in mind that these symptoms also originate with the excess of vitamin A from the animal kingdom or supplements, contrary to that coming from plant foods, since the latter is regulated in the body.


It is vital to maintain an adequate level of vitamin A consumption in your diet: this will ensure you have good vision, protect your bones, and help you prevent cancer and maintain a stable immune system and allow you to develop a healthy fetus if you are pregnant. However, despite this, you should be aware that excess of this nutrient can lead to death.


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