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Essential vitamins for the human body


What are vitamins?

Vitamins are organic compounds, and they are essential for life. They are necessary for small amounts but cannot be made by the body and must be obtained through food or supplements. Vitamins function as cofactors, regulatory molecules, or antioxidants.

Vitamins are found in the form of capsules, tablets, powders, etc. One can buy vitamin k2, K, or any vitamin in any form. Vitamin tablets and capsules are also available on many online platforms making them easily accessible.

As people could not get sufficient quantities of these essential vitamins through food intake, considering supplements is a wise decision for cell metabolism, hormone synthesis, and gene expression regulation.

Essential vitamins for the human body

Vitamin A

Vitamin A is a fat-soluble vitamin, the most important of which is beta-carotene. Vitamin A is essential to the proper functioning of the eyes, the skin, the immune system, the bone structure, and reproduction. It is also necessary for foetal brain development.

Vitamin B1

Vitamin B1 is a water-soluble vitamin. It treats several medical conditions and disorders such as beriberi, diabetes, and thalassemia. B1 deficiency is a significant cause of mental impairment in children.

Vitamin B12

Vitamin B12 is a catch-all term for a group of related substances collectively termed cobalamins. They are essential for the growth and healthy functioning of the nervous system. They are found in animal products such as meat, fish, dairy products, and eggs. Although bacteria produce B12, it is absorbed by organisms that have developed the ability to convert it.

Vitamin C

Vitamin C is useful for making collagen, which helps strengthen bones and ligaments, and aids in absorbing iron and calcium. Vitamin C is also known to assist in the collagen formation, helping heal wounds.

Vitamin D

Vitamin D is essential for healthy skin. It is also vital for healthy bones. It is also critical for the body to absorb calcium from your food. One can buy vitamin D supplements in tablet or capsule form.

Vitamin K

It is a group of fat-soluble vitamins whose most important function is to control blood clotting. Vitamin K deficiency results in increased bleeding. Vitamin K is used to treat haemophilia and is also used to prevent and treat osteoporosis and other bone conditions.

Vitamin K2

Vitamin K2 is a fat-soluble vitamin synthesised in the liver from the precursor phylloquinone. Bacteria also synthesise it in the intestine. It helps in bone metabolism and blood coagulation. It increases bone mineral density and improves blood clotting. It is readily available as a supplement, and one can buy vitamin k2  in the form of tablets.


Folate is a dietary vitamin. It is found in green leafy vegetables, dairy products, and fortified foods. It reduces neural defects and may help reduce the risk of some cancers. It functions as a necessary enzyme in cell growth, differentiation, DNA synthesis, and methylation.


The most crucial function of retinol is to help the skin produce vitamin D, which also helps the immune system, and hair, skin, and nails. It is a vitamin A derivative used as an anti-ageing treatment. The history of vitamin A and its effects on the human body were explored as the connection to cosmetic use.

Vitamin deficiency is widespread. For long and healthy life, people should be aware of the necessity of essential vitamins in their diet.

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