Which nutrient is crucial for energy metabolism?

• A. Protein
• B. Fats
• C. Carbohydrates
• D. Vitamins

Answer: (C)

Carbohydrates play a crucial role in energy metabolism as they are the body's primary source of fuel. When carbohydrates are consumed, they are broken down into glucose, which is used by the body's cells to produce energy in the form of adenosine triphosphate (ATP). This process is vital for maintaining various bodily functions and physical activity.

While proteins and fats also contribute to energy production, carbohydrates are the most efficient and preferred source due to their rapid conversion to glucose. Vitamins, on the other hand, support various metabolic processes but do not directly provide energy themselves. Thus, carbohydrates are essential for optimal energy metabolism in the body.