An essential micronutrient for human health, vitamin A is a group of organic compounds which include popular nutrients like retinol and beta carotene.A basic requirement for good eye care and vision, vitamin A is found in many foods which we eat daily, and is vital for our wellbeing and overall health. Apart from the well-known benefit of good vision and eye health, active forms of vitamin A are also important for the development of the immune system.It is also very helpful in the proper development of the reproductive system. This is because it allows for better functioning and health of essential organs including the heart and kidneys.Vitamin A is a fat-soluble vitamin, which is primarily divided into two forms: retinoids or beta carotene. While retinoids are mostly found in animal food sources like milk, poultry, and dairy; beta carotenes are found in fruits and vegetables. Due to the importance it holds in maintaining human health, it is recommended that the average consumption of vitamin A should be 0.0003 oz (900 mcg) per day for men, 0.0002 oz (700 mcg) per day for women, and between 0.0001-0.0002 oz (300-600 mcg) for children and adolescents. Let’s look at some vitamin A facts to learn more about this nutrient and its ability to increase white blood cells and manage cancer risk and night blindness.Vitamin A Food SourcesThere are several food sources to fulfill our daily requirements. As discussed above, food sources are primarily divided into two kinds; retinoids which are derived from animal sources like meat, poultry, and dairy; and beta carotene which is derived from plant sources including fruits and vegetables.Both of these need to be metabolized in the body to make them into an active form of the vitamin which can then be absorbed by the body and perform its function. Retinoids are also known as performed vitamins and beta carotene is the most commonly found form of carotenoids.In the 21st century, people observe all different kinds of diets. Whether you are a vegetarian, meat eater, vegan, keto, or any other diet follower, you can easily find foods that fit your diet and are rich in vitamin A. Let’s look at some foods in each category.Plant Foods High in Vitamin ACarrots: Most commonly known and one of the best sources of vitamin A. Carrots can be found throughout the year, but winters are the main harvest season. It is recommended that carrots should be eaten more often when in season and fresh.Broccoli: Another rich source of vitamin A, broccoli can be found in most stores and throughout the year.Green Leafy Vegetables: Green leafy vegetables, particularly spinach, lettuce, and kale are rich in vitamin A and in antioxidants which have marvelous benefits for the skin.Yellow Vegetables: Yellow vegetables such as pumpkins and sweet potatoes are also abundant in vitamin A. These can be found almost everywhere around the world and are also very versatile, so you can enjoy them in several forms.Cantaloupes: Fruits like cantaloupes are extremely rich in vitamin A and also very refreshing on a hot summer day. These sweet fruits could become your new favorite summer dessert.Animal FoodsBeef liver and tuna are the best animal sources to get your daily recommended value of vitamin A. However, depending upon the method of preparation, too much can cause health issues so be cautious about how much you consume.Lamb Liver: Another popularly consumed and widely available animal source of vitamin A is lamb liver. It is also very rich in protein.Cod Liver Oil: Cod liver oil is easily available as a dietary supplement, almost everywhere in the world. These supplements can be found at any medical shop and are good for those who do not like seafood or choose not to eat fish.Apart from these food sources, the market is flooded with vitamin A dietary supplements and it is easy to get your hands on them. If you do not feel that your diet is fulfilling your daily need for vitamin A, then you can consult your doctor and try these dietary supplements. It is always advisable to consult a doctor before including any dietary supplements into your routine as they can have harmful effects if too much is consumed.Vitamin A toxicity can occur due to the presence of excess vitamin A in the body. Only consuming high doses of vitamin dietary supplements can lead to this vitamin toxicity. This high dose toxicity may be chronic or acute and can be reversed if the vitamin supplement is no longer consumed.Vitamin A ClassificationVitamin A can be classified into two types, retinoids and carotenoids. Retinoids: Derived from animal products including poultry, dairy products, and meat. The most common form of retinoids is retinol. Other forms include retinoic acid and retinal. In animal products, vitamin A is most commonly found in the form of a chemical compound known as ester, and within that, in the form of Retinyl Palmitate. This, when it reaches the small intestine is turned into retinol which is absorbed by the body.Carotenoids: These are derived from plant-based sources and include fruits, vegetables, grains, and more. The most common carotenoid is beta carotene. It is an orange-yellow colored compound. Other common forms of carotenoids include alpha-carotene, gamma carotene, and xanthophyll. While most commonly found in plant sources, carotenoids can also be found in some animal sources like shrimp and lobsters.Vitamin A Health BenefitsThe health benefits of vitamin A cannot be exaggerated. This micronutrient contains a lot more benefits than it is given credit for. Let’s look at some of the many benefits in more detail.The primary benefit of vitamin A is the promotion of great eye health. Retinol is a key product aiding in good vision and as such, is extremely necessary to maintain healthy vision. Retinol also helps to prevent or delay night blindness which is now becoming increasingly common.Vitamin A also helps cell and bone growth and development. For proper cell and bone growth at the correct pace, vitamins and minerals are required as well as proteins, and vitamin A is a priority on this list.Vitamin A contributes to the proper functioning and development of the immune system. The importance of a healthy immune system needs no introduction. For those who were previously unaware of its importance, covid must have explained how vital it is to have a good immune system. Risking the health of your immune system is basically playing with fire. It controls your health, protects you from diseases, and fights off germs to keep you well. So be sure to eat your vegetables to keep your immune system happy.For people who cannot figure out why they have eye bags and acne which just won’t budge, the answer probably is lack of vitamin A. As you might have noticed, a lot of beauty products now boast of having vitamin A extracts. But while they may be somewhat ineffective, consuming your vitamin A in its natural form will be certain to benefit the health of your skin.Vitamin A has also proven useful in the treatment of some kinds of cancers like leukemia as well as in the treatment and decreased risk of cataracts and HIV.Vitamin A DeficiencyAs with any other nutrient required for the benefit and development of human health, a deficiency of vitamin A can also cause issues and interrupt our healthy lives.In order to avoid health issues, it is important to know what the deficiency can lead to and make sure to avoid such health problems by regulating vitamin A intake.It is estimated that one-third of children below five years of age suffer from vitamin A deficiency. What is even worse is that hundreds of thousands of children, unfortunately, die every year because of this and many others lose their vision. In fact, according to some scientists, vitamin A deficiency has been reported as the main cause of preventable blindness, especially in early childhood.It can even cause the death of children by exposing them to severe diarrhea.The primary cause of vitamin A deficiency especially in children has been connected with poor diet choices wherein children are not provided enough fruits, vegetables, and animal and dairy products. It is also connected to early withdrawal of breastfeeding, leading to a lack of essential vitamins and minerals for the infant.Vitamin A can contribute to a reduced risk of age-related macular degeneration occurring in older people.The secondary cause of vitamin A deficiency is attributed to faulty absorption of lipids in the body. Chain-smoking or excessive alcohol intake can cause the small intestine to be unable to process vitamins into an absorbable product or to be unable to solubilize them. This then leads to a deficiency of vitamin A, even though your diet may be rich in vitamin A, as the body is not absorbing it.Here at Kidadl, we have carefully created lots of interesting family-friendly facts for everyone to enjoy! If you liked our suggestions for 13 Vitamin A Facts About This Fat-Soluble Vitamin That All Should Know then why not take a look at Have You Ever Thought? Why Do Painters Wear White? Fun Facts For All!, or Do You Know? Why Do Monks Shave Their Heads? Religion Facts To Know!.
An essential micronutrient for human health, vitamin A is a group of organic compounds which include popular nutrients like retinol and beta carotene.
