Function Of Vitamin A In The Body – In the previous post, we informed you about the difference between water-soluble and fat-soluble vitamins. Now we want to describe each vitamin in more detail and explain what each vitamin does, what the food sources are, and how much you need. First, vitamin A.

Vitamin A or Retinol is a fat-soluble vitamin and can be stored in the liver. Vitamin A has several important functions, including:

Function Of Vitamin A In The Body

We obtain vitamin A from two main sources: preformed vitamin A (Retinol) and provitamin A. Carotenoids (mainly beta-carotene).

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🧀🐟Pre-formed vitamin A (Retinol) is only found in foods of animal origin such as cheese, eggs, fatty fish, milk and yogurt, liver and liver products such as liver pâté.

🥕🥭 Carotenoids, or beta-carotene, are found only in plant sources, such as yellow, red and green (leafy) vegetables such as spinach, carrots, sweet potatoes and red peppers. It is also found in yellow fruits such as mango, papaya and apricots.

Total vitamin A content in foods is usually expressed in micrograms (µg) of retinol equivalents (RE). The vitamin A requirement for adults aged 19 to 64 is:

Did you know that it’s only a semi-myth that eating carrots will help you see in the dark? The main nutrient in carrots, beta-carotene (responsible for the root vegetable’s distinctive orange color), is a precursor to vitamin A and helps the eyes adjust to dim light. It won’t give you night vision superpowers or cure your contact lens addiction, but eating enough of it will support eye health.

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This website uses cookies to ensure you get the best experience on our website. For more information, see our Privacy Policy. Vitamin A is a fat-soluble element, an antioxidant powerhouse that plays a key role in all body functions. Active ingredients of vitamin A include preformed vitamin A or retinoids such as retinol, retinal, retinoic acid and provitamin A, carotenoids such as β-carotene, alpha-carotene, gamma-carotene and xanthophyll beta-cryptoxanthin.

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Retinol, also called vitamin A1, is one of the key ingredients of vitamin A. Obtained from animal sources, it is extremely beneficial in the treatment and prevention of xerophthalmia – drying of the cornea.

Carotenoids, also known as tetraterpenoids, are typically found in plant food sources. Carotenoids are converted by the body into pre-formed vitamin A for later use.

Vitamin A is a blessing to us because it provides a wide range of benefits. It is essential in maintaining healthy functions of our body. It strengthens our immune system, helps treat eye problems and supports cell growth and development.

Vitamin A is mainly used to improve eye health, improving vision and treating goat blindness – a condition in which the eyes are unable to see anything in low light.

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The most promising benefit of vitamin A is the prevention and treatment of xerophthalmia, a condition in which the eyes fail to produce tears, causing dry conjunctiva or causing dry eye syndrome. If left untreated, it can ultimately damage the cornea and lead to complete loss of vision.

In addition to treating visual disorders, vitamin A helps strengthen and remodel bones, prevent osteoporosis and maintain overall bone health.

It also plays a significant role in infant reproduction and development, and helps improve male and female fertility.

Vitamin A plays a key role in maintaining our body’s immune system. It helps in the production of white blood cells, which in turn act as a shield and protect our body from the invasion of infections or germs.

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The most promising benefits of vitamin A have recently been discovered in the treatment of breast, lung and prostate cancer. People with a family history of cancer have been shown to have a lower risk of developing cancer if they consume vitamin A regularly.

Vitamin A, a powerful antioxidant, is required for cell regulation. Research shows that it controls the release of insulin by cells into the bloodstream, so it plays a role in controlling diabetes.

Additionally, regular consumption of vitamin A regulates the production and secretion of sebum in the skin and hair tissue, and also ensures a beautiful mane and radiant skin.

Mother Nature has blessed us with countless dietary sources containing vitamin A. It is present in food sources either as preformed vitamin A, which is fat-soluble and easily absorbed by the body, or in the form of provitamin carotenoids, which are converted into active retinols and retinyl esters for better absorption by the body.

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In addition to vegetables, some orange and yellow fruits are also rich in vitamin A, e.g. mango, orange, papaya, melons, pink or red grapes, watermelon, apricot, guava

The rich content of active vitamin A can also be found in various products of animal origin, such as:

Vitamin A deficiencies are very common and result from improper nutrition. The most common disease resulting from a lack of vitamin A is xerophthalmia or night blindness. It may also inhibit the growth and development of children and may pose a risk of fetal growth in pregnant women. Vitamin A deficiency can also make the body susceptible to infections and may cause various health and skin problems.

Although vitamin A is absolutely essential for a healthy body, consuming too much of it can lead to serious health risks. Toxicity occurs mainly due to pre-formulated vitamins or retinoids. Ready-made vitamins are fat-soluble and easily absorbed by the body. When we consume it in larger quantities, it is stored in the liver as fats. And when too much fat accumulates in the liver, it becomes toxic to us.

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A healthy intake of vitamin A should be close to 600 IU. retinol and 4800 IU β-carotene. Anything more than this can lead to chronic toxicity manifesting as painful symptoms of hypervitaminosis characterized by eye irritation, eye sensitivity, bone, muscle or joint pain, headache, dry skin, constipation, confusion, nausea, vomiting, abdominal pain, hair loss, skin problems e.t.c.

Acute toxicity can also cause serious health problems such as liver problems, skin problems, fetal defects in pregnant women.

Although there is a list of vitamin A benefits, it is always recommended to take it within normal limits and seek prior consultation with a doctor or dietitian when taking vitamin A supplements.

Because vitamin A is a fat-soluble vitamin, it stays in the body for a long time. When consumed as part of natural foods, it does not cause any side effects, but if vitamin A is taken in excess in the form of supplements, i.e. more than the recommended amount, it can very well lead to toxicity in the body.

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Vitamin A deficiency can be easily avoided by eating enough fresh fruits and vegetables, especially those rich in this essential nutrient. Some of them include leafy greens, carrots, sweet potatoes, pumpkins, melons, mango, jackfruit, papaya, dairy products, fish and liver.

Vitamin A deficiency can be detected mainly by blood tests. One direct diagnostic test that helps determine the level of vitamin A in the blood is the vitamin A blood test or retinol test and serum retinol test.

Organic Harvest Youthful Glow Facial Kit Saffron, Oat Milk and Peach Enriched with Bakuchiol 30-Minute Metamorphosis 40 g Rs 200.60 Rs 295.00 Nearly 100 years ago, scientists began to discover the link between common diseases and nutritional deficiencies. One discovery was that vitamin B12 levels were linked to pernicious anemia, which is a decline in the number of red blood cells due to the body’s inability to absorb enough vitamin B12.

Progress in science has revealed that people suffering from pernicious anemia lack intrinsic factor, a protein produced by the cells of the gastric mucosa. Intrinsic factor helps the body’s intestines absorb vitamin B12. Fun fact: Vitamin B12 was isolated, crystallized and characterized in Dorothy Hodgkin’s laboratory, which contributed to her Nobel Prize in 1964.” 1

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Vitamin B12, also called cobalamin, plays a key role in the formation of DNA and red blood cells and in maintaining healthy brain and nerve cells.

Because the body cannot produce vitamin B12 on its own, food or supplementation is necessary to meet daily requirements. Vitamin B12 occurs naturally in many different animal proteins and is also added to some fortified foods, such as cereals. Plant foods do not contain vitamin B12 unless fortified, which puts vegetarians at greater risk of vitamin B12 deficiency. 2

You can get the recommended amounts of vitamin B12 by eating a variety of foods, including fish, meat, poultry, eggs, milk and other dairy products. An 8-ounce glass of 2% milk contains half the daily requirement of vitamin B12. 3

Your body stores 1,000 to 2,000 times more of the vitamin

List Of Vitamins And Their Functions

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