What are vitamins? By whom and when were they opened?

Vitamins are a group of biologically active substances synthesized in the body or supplied with food, which in small quantities are necessary for the normal metabolism and vital activity of the body. Experimentally determined the presence in food of special substances that affect the growth and development of the body, NI Lunin in 1881 Obtaining vitamins and the introduction of the term “vitamin” – the merit of K. Funk (1911).

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