ACE Health Coach Certification Practice Test

Which vitamin helps the body release energy from carbohydrates during metabolism?

1. Pantothenic acid

2. Thiamin

3. Vitamin K

4. Choline

The correct answer is: Thiamin

Thiamin is essential for the metabolism of carbohydrates, as it plays a critical role in converting glucose into energy. Thiamin, also known as Vitamin B1, acts as a coenzyme in several biochemical processes that facilitate carbohydrate metabolism. It is involved in the pyruvate dehydrogenase complex, which is crucial for the conversion of pyruvate (derived from glucose) into acetyl-CoA, a key component that enters the Krebs cycle to produce ATP, the energy currency of cells. In contrast, pantothenic acid is primarily involved in the synthesis of coenzyme A, which is also important in energy metabolism but not specifically in the initial breakdown of carbohydrates. Vitamin K plays a mainly supportive role in blood clotting and bone health, rather than energy release. Choline is important for various bodily functions, including neurotransmitter synthesis and lipid metabolism, but it is not directly involved in the metabolism of carbohydrates for energy release. Thus, thiamin is the vitamin that specifically aids in the process of extracting energy from carbohydrates during metabolism.