Which vitamin's function is energy release and nervous system?

• A. Niacin (B3)
• B. Folic acid (B9)
• C. Thiamin (B1)
• D. Riboflavin (B2)

Answer: (C)

Understanding how vitamins support energy release and nervous system function. Thiamin's active form, thiamin pyrophosphate, acts as a coenzyme in carbohydrate metabolism, enabling key steps that convert glucose into usable energy. It helps enzymes that convert pyruvate to acetyl-CoA and supports other reactions in energy production, which is especially important for tissues with high energy demands like nerves. Adequate thiamin ensures nerves have the energy they need to transmit signals properly; a deficiency can impair both energy production and nerve function, leading to problems such as fatigue and neurological symptoms. While other vitamins also participate in energy metabolism, they’re not as directly linked to nervous system function as thiamin. Folic acid mainly supports DNA synthesis and cell growth, whereas niacin and riboflavin are involved in redox reactions in energy pathways but don’t have the same direct connection to nerve function as thiamin.