<Li> InChI = 1S / C12H17N4OS / c1 - 8 - 11 (3 - 4 - 17) 18 - 7 - 16 (8) 6 - 10 - 5 - 14 - 9 (2) 15 - 12 (10) 13 / h5, 7, 17H, 3 - 4, 6H2, 1 - 2H3, (H2, 13, 14, 15) / q + 1 </Li> <Li> Key: JZRWCGZRTZMZEH - UHFFFAOYSA - N </Li> <P> Thiamine, also known as thiamin or vitamin B, is a vitamin found in food and used as a dietary supplement . As a supplement it is used to treat and prevent thiamine deficiency and disorders that result from it, including beriberi, Korsakoff's syndrome, and Korsakoff's psychosis . Other uses include maple syrup urine disease and Leigh's disease . It is taken by mouth or by injection . </P> <P> Side effects are generally few . Allergic reactions, including anaphylaxis, may occur . Thiamine is in the B complex family . It is needed for the metabolism of carbohydrates . As people are unable to make it, thiamine is an essential nutrient . Food sources include whole grains, meat, and fish . </P>

What is the role of thiamin in energy metabolism