Thiamin (or thiamine) is one of the water-soluble B vitamins. It is also called Vitamin B1. Thiamin acts like a cofactor in the body by helping the body's cells to change carbohydrates into energy. Thiamin acts as a coenzyme in the metabolism of branch-chain amino acids.
The following best describes the role of thiamin in energy metabolism: Its coenzyme form assists in breakdown of carbohydrates, fats, and proteins. Correct answer: D The coenzyme which is essential for energy metabolism is Thiamin pyrophosphate (TPP).