Biotin (vitamin H) - this vitamin occurs in plant and animal tissues, Mainly as a prosthetic group of a number of enzymes catalyzing carboxylation reactions. Plays an important role in the synthesis of fatty acids, as well as in the process of gluconeogenesis.
Part of the biotin demand is covered thanks to the synthesis by gastrointestinal microorganisms, And the rest - through food. Vitamin H deficiencies are very rare. They were found in people who consumed significant amounts of raw eggs. There is a protein called avidine in raw eggs, which binds biotin and makes it not. Egg cooking eliminates this property of avidine.
Biotin deficiencies are manifested by general weariness, a decrease in appetite, depression, muscle pain, etc.. The occurrence of relationships between biotin was found, Folacine and vitamin B12. The latter can even out biotin deficiencies to some extent.