Thiamine, also known as ANEURIN (7 letters), Vitamin B1 (9 letters) and Vitamin BN (9 letters), is an essential nutrient found in many foods. It plays an important role in the body's metabolism, helping to convert carbohydrates into energy. Thiamine is also important for proper nerve and muscle function, and it helps to maintain a healthy heart and digestive system. Deficiency of thiamine can lead to a variety of health problems, including fatigue, confusion, and memory loss.