What is Vitamin B1 commonly known as?

Vitamin B1 is commonly known as Thiamin. This vitamin plays a crucial role in carbohydrate metabolism and is important for the proper functioning of the nervous system. Thiamin is essential for converting carbohydrates into energy, which is particularly vital for tissues that are dependent on glucose for fuel, such as the brain. Additionally, it aids in the synthesis of neurotransmitters and supports overall mental function and physical coordination.

The other options represent different vitamins: Riboflavin is Vitamin B2, Niacin is Vitamin B3, and Cobalamin is Vitamin B12. Each of these vitamins has unique functions and deficiency symptoms, making them important in their own right but distinct from Thiamin's role. By recognizing Thiamin as Vitamin B1, it's easier to understand its specific contributions to human health and nutrition.