What is thiamin commonly known as?

Thiamin is commonly known as Vitamin B1. This designation comes from its role as a vital nutrient within the B-vitamin complex, where it plays an essential part in carbohydrate metabolism and energy production. Thiamin is crucial for the function of several enzymes involved in the conversion of carbohydrates into energy and in ensuring proper nerve function. It is also important in the synthesis of neurotransmitters, which are critical for communication between nerve cells.

The other options refer to different vitamins. Vitamin B12 is important for red blood cell formation and neurological function, niacin (Vitamin B3) is involved in energy metabolism and DNA repair, and folate (Vitamin B9) is essential in DNA synthesis and repair and is particularly important during pregnancy for fetal development. Each of these has distinct roles in the body, yet none are synonymously tied to thiamin as Vitamin B1 is.