Vitamins are organic substances with various structures and chemical properties. Although the human body needs them in small quantities, they are necessary for the normal functioning of the body – for growth, development, and reproduction.

Each individual vitamin has its own function and participates in numerous biochemical reactions in the body. The lack of a certain vitamin causes a specific disease.

Risk groups for vitamin deficiency are mostly the elderly, adolescents, pregnant women, diabetics, and smokers, and vitamin supplementation is especially recommended for them.

Vitamins are divided into 2 groups:

fat-soluble vitamins (vitamin A, vitamin D, vitamin E, and vitamin K)
water-soluble vitamins (group B vitamins and vitamin C).

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