Question

which nutrient is the most difficult to break down and, thus, is generally used last for energy in the body?
○ water
○ carbohydrates
○ proteins
○ fats

Explanation:

• Water is not a nutrient used for energy.
• Carbohydrates are the body's first choice for energy as they are relatively easy to break down.
• Proteins are primarily for building and repairing tissues, and the body uses them for energy only when carbohydrates and fats are insufficient, but they are not the most difficult to break down for energy.
• Fats are complex molecules and require more complex metabolic processes to break down compared to carbohydrates and proteins. So, the body generally uses fats last for energy when other energy sources are depleted.

Answer:

D. Fats