Vitamin B1, thiamin, or thiamine, enables the body to use carbohydrates as energy. It is essential for glucose metabolism, and it plays a key role in nerve, muscle, and heart function. Vitamin B1 is a water-soluble vitamin, as are all vitamins of the B complex.
The RDA of thiamine is 1–1.5 mg per day, but only in a biochemically healthy individual, and many physicians are under the impression that this kind of vitamin deficiency, if it occurs at all, is easily and quickly treated.
Thiamin(e), also known as vitamin B1, is now known to play a fundamental role in energy metabolism. Its discovery followed from the original early research on the ‘anti-beriberi factor’ found in rice polishings. After its synthesis in 1936, it led to many years of research to find its action in treating beriberi, a lethal scourge known for thousands of years, particularly in cultures dependent on rice as a staple.