You suffer from fatigue and your hair feels brittle and dry? Then click here for more information about vitamin A tablets. A vitamin A supplement may be able to help you restore your wellbeing. The symptoms can be easily treated with the right dosage. In our vitamin A tablets test 2021 we have compiled the most necessary knowledge and answered the most important questions in detail. To make it easier for you to make a purchase, we have set up some criteria that you can use as a guide.
- 1 Weekly newsletter with the best personal finance tips
- 2 First of all, the most important things
- 3 Best Vitamin A Tablets: Our Picks
- 4 Buying and evaluation criteria for vitamin A tablets
- 5 Guide: Frequently asked questions about vitamin A tablets answered in detail
- 5.1 What is vitamin A and how does it work?
- 5.2 How much vitamin A should be taken daily?
- 5.3 How does a vitamin A deficiency manifest itself?
- 5.4 What types of vitamin A tablets are there?
- 5.5 What are the side effects of vitamin A tablets?
- 5.6 What alternatives are there to vitamin A tablets?
- 5.7 Do vitamin A tablets work against skin problems?
First of all, the most important things
- Vitamin A, also known as ritanol, is involved in important processes in our body. It is involved in the visual process, promotes protein-fat and carbohydrate metabolism and strengthens the immune system.
- A deficiency of vitamin A can cause weakened symptoms such as fatigue, poor concentration, and dry skin and hair.
- The dosage of vitamin A must be particularly observed during pregnancy. An overdose of the vitamin can be harmful to the mother and the unborn child. The intake of food supplements during pregnancy should first be clarified with the appropriate doctor.
Best Vitamin A Tablets: Our Picks
Buying and evaluation criteria for vitamin A tablets
When buying vitamin A tablets, you should pay attention to various criteria. These can be:
Especially when it comes to health, you should pay attention to some criteria before buying such tablets. After all, you want to do something good for your body.
You should be careful with the dosage. Vitamin A preparations are available in particularly high doses, but also in lower doses.
Multivitamin preparations are often too high in dosage and should therefore be taken with caution. Since A vitamins are fat-soluble, they cannot be excreted in the urine. Therefore, if an overdose of vitamin A occurs, the excess is stored in the body and side effects may occur. These are explained in more detail in the following sections.
In addition to the classic tablets, there are of course other forms of administration. These include capsules, ointments, eye drops or cod liver oil.
Basically, it doesn't matter which alternative you choose. The effect of the A vitamin remains the same.
Tablets release their active ingredient in the stomach, whereas capsules do so in the gastrointestinal tract. The A vitamins in tablet form are easy to take and, above all, advantageous to dose. They can be easily broken in order to take only a part of the dose. The tablets themselves can also be divided into chewable tablets and effervescent tablets. These are usually multivitamin preparations.
As with all food supplements, the contents of vitamin A packaging vary. Depending on your wishes, there are preparations with 30 to 200 tablets, each with different dosages. The quantity can be slightly confusing for those who want to take the vitamins. Simply follow the manufacturer's instructions on the package insert. Normally, one tablet should be taken daily.
It is advantageous to buy food supplements with as few additives as possible. In order for the A vitamin to be effective, colourings or flavourings are not necessary. However, these can make it easier for children to take. Retinyl acetate is a common additive in vitamin A supplements. This is because retinyl esters, unlike the pure A vitamin, are insensitive to light, heat and oxygen. Vitamin A tablets are also available in vegan or vegetarian form. If you have problems with lactose or gluten, there are no concerns here either. Many manufacturers offer supplements free of lactose and gluten.
Guide: Frequently asked questions about vitamin A tablets answered in detail
To give you a general overview of the topic of vitamin A tablets, we have summarised all the essential background information and answered the most important questions.
What is vitamin A and how does it work?
The vitamin is absorbed into the blood through food in the small intestine. It is a fat-soluble vitamin that can be stored in the body, especially in the liver. It cannot be excreted in the urine like many other vitamins. In general, vitamin A is particularly important for our body and its processes. It plays an important role in the function and structure of mucous membranes, promotes growth, is involved in the production of white blood cells and strengthens the visual process as well as the metabolism. Vitamin A affects the following functions of our body:
- Vision: Vitamin A plays an important role in vision. When light falls into the eye, vitamin A is needed to convert the energy of the light into nerve impulses. Vitamin A, especially the compound retinal, is also needed for the regeneration of pigment cells. After a study on animals, it was found that ritonal acts as a key component in the visual process. (1)
- Cardiac arrhythmias: Arteriosclerosis a heart disease in which the coronary arteries narrow, causing symptoms such as arrhythmia or shortness of breath. Studies with animals have shown that vitamin A plays an important role in the development of arteriosclerosis. Further studies are necessary in this regard. (2)
- Immune system: Vitamin A, or more precisely retinol and retinal, strengthen the protection against bacteria and infections by protecting the skin and mucous membranes. (3) The vitamin is also involved in the formation of antibodies in the white blood cells (4)
- Metabolism: Retinal, a vitamin A compound, has a major influence on protein, fat and carbohydrate metabolism in both the human and animal body. Thus, vitamin A can also influence a person's overweight, the so-called obesity disease. (5) So if you want to reduce your weight, vitamin A can help you.
- Nervous system: Vitamin A can improve learning ability and memory. It can also prevent increasing forgetfulness in old age. (6)
- Cell growth: Vitamin A is involved in the division of stem cells. This means that special body cells can be developed with the help of the vitamin. (7) Therefore, the protection of the mucous membranes can also be derived from the vitamin.
Vitamin A, especially the compound retinal, is thus involved in many of our body's functions and therefore there should be no deficiency.
How much vitamin A should be taken daily?
|Age group||amount of vitamin A|
|up to 13 years||0.6-0.8mg|
The amounts are given for the vitamin A compound retinol per day. Of the vitamin A tablets, one is usually to be taken per day. However, the instructions on the package leaflet should be followed urgently.
How does a vitamin A deficiency manifest itself?
Certain symptoms can thus occur in different areas of the body.
- Blurred vision, especially at night
- dry skin
- Hair loss
- Lack of concentration
- Shortness of breath
- Inflammation of the oral mucosa
Vitamin A tablets or alternative products can quickly remedy these symptoms with the right dosage. Pregnant women or people who eat a vegan diet are particularly quickly affected.
Vitamin A overdose during pregnancy
In addition to a deficiency, overdoses during pregnancy can also cause damage to the health of the unborn child. Therefore, special caution is required when dosing the A vitamin. During pregnancy, the intake of such food supplements should first be clarified with the appropriate doctor. An overdose of vitamin A during pregnancy can lead to malformations or birth defects. (8) Food supplements should be avoided during pregnancy. A balanced diet will achieve the recommended concentration.
What types of vitamin A tablets are there?
- Film-coatedtablets: Film-coated tablets are the classic tablets that first have to be pulled out of a package. Ideally, they are swallowed with a sip of water. Many people, especially children, have problems swallowing tablets. One solution for such a film-coated tablet is the so-called chewable tablet.
- Chewabletablets: They can easily be taken in between meals. The advantage is that they do not have to be swallowed but first chewed in the mouth. This makes it easier for children to take the tablets. Most of the time, they are even available in different flavours, which makes them easier and more pleasant to take.
- Effervescent tablets: This tablet variant is also pleasant to take. The tablet dissolves in water so that the solution can be drunk normally. Here, too, different flavours are available, for example orange. For people who have problems taking tablets, this variant is also ideal.
However, these vitamin A preparations are usually only available as a combination preparation. This means that a comprehensive supplement to the diet can be taken in just one tablet.
What are the side effects of vitamin A tablets?
What alternatives are there to vitamin A tablets?
But cod liver oil can also serve as a vitamin A supplement. However, if you eat a vegan diet, this option is not suitable.
- Vitamin A capsules: Like tablets, capsules are mainly available in purely herbal form. In addition, the preparations are often available in a high-dose form and in large quantities.
- Vitamin A drops: The drops can simply be added to a drink and taken. They are often dissolved in olive oil.
- Cod liver oil capsules: Cod liver oil is an oil that is extracted from fish, i.e. animal sources. It contains a balanced dosage of vitamin A and vitamin D.
The different forms of administration have their own advantages and disadvantages.
The advantages and disadvantages of capsules
Capsules and tablets are not easy to take for many people and especially for children because they have problems swallowing the preparations.
The advantages and disadvantages of vitamin A drops
The advantages and disadvantages of cod liver oil drops
Do vitamin A tablets work against skin problems?
Image source: dolgachov / 123rf
von Lintig, Johannes. “Metabolism of carotenoids and retinoids related to vision.” The Journal of biological chemistry vol. 287,3 (2012): 1627-34. doi:10.1074/jbc.R111.303990
Rhee EJ, Nallamshetty S, Plutzky J. Retinoid metabolism and its effects on the vasculature. Biochim Biophys Acta. 2012 Jan;1821(1):230-40. doi: 10.1016/j.bbalip.2011.07.001. Epub 2011 Jul 23. PMID: 21810483.
Cassani B, Villablanca EJ, De Calisto J, Wang S, Mora JR. Vitamin A and immune regulation: role of retinoic acid in gut-associated dendritic cell education, immune protection and tolerance. Mol Aspects Med. 2012 Feb;33(1):63-76. doi: 10.1016/j.mam.2011.11.001. Epub 2011 Nov 22. PMID: 22120429; PMCID: PMC3246074.
Heine G, Hollstein T, Treptow S, Radbruch A, Worm M. 9-cis retinoic acid modulates the type I allergic immune response. J Allergy Clin Immunol. 2018 Feb;141(2):650-658.e5. doi: 10.1016/j.jaci.2017.03.046. Epub 2017 May 17. PMID: 28526622.
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Olson, Christopher R, and Claudio V Mello. “Significance of vitamin A to brain function, behavior and learning.” Molecular nutrition & food research vol. 54,4 (2010): 489-95. doi:10.1002/mnfr.200900246
Gudas LJ, Wagner JA. Retinoids regulate stem cell differentiation. J Cell Physiol. 2011 Feb;226(2):322-30. doi: 10.1002/jcp.22417. PMID: 20836077; PMCID: PMC3315372.
TK Ong, KY Tshai, HL Choo, PS Khiew, SL Chung, Mechanische Leistung und biologische Abbaubarkeit von Polyvinylalkohol-Nanokompositfilmen, Materialwissenschaft und Werkstofftechnik, 10.1002 / mawe.202000030, 51 , 6, (740-749), (2020).
Ursachen, klinische Merkmale und Ergebnisse einer prospektiven Studie über medikamenteninduzierte Leberschäden in den USA
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Kligman AM, Mills OH Jr, Leyden JJ, Gross PR, Allen HB, Rudolph RI. Oral vitamin A in acne vulgaris. Preliminary report. Int J Dermatol. 1981 May;20(4):278-85. doi: 10.1111/j.1365-4362.1981.tb04338.x. PMID: 6453848.