Question

which nutrient is the first (easiest) to be broken down and absorbed for energy use in the body?
○ water
○ proteins
○ fats
○ carbohydrates

Explanation:

To determine the first nutrient broken down for energy, we analyze each option:

• Water: Not an energy - yielding nutrient, so it's not used for energy.
• Proteins: Primarily for growth, repair, and as a last - resort energy source, not the first.
• Fats: Broken down after carbohydrates, used for long - term energy storage and later energy needs.
• Carbohydrates: The body's preferred and first - choice energy source. Enzymes in the mouth (salivary amylase) start breaking down complex carbs, and digestion continues in the small intestine. Glucose from carbs is quickly absorbed and used for energy.

Answer:

D. Carbohydrates