Thiamine Vitamin B1 is type of a water-soluble vitamin that plays a significant role in energy metabolism. It helps in converting food into energy that the body can utilize, and also helps in keeping up healthy muscles, nerves, and heart function. Thiamine is found in a lot of foods, comprising whole grains, nuts, legumes, fish, and meat. Deficiency in thiamine leads to a condition called beriberi, which can cause tingling, weakness, and numbness in the limbs, and also difficulty breathing and mental confusion. Thiamine Vitamin B1 is necessary for maintaining good health, and can be acquired through supplements or a balanced diet.