Which one provides twice as much energy as carbohydrates

Options

A. Vitamins
B. Proteins
C. Minerals
D. Fats

Answer

To solve the question "Which one provides twice as much energy as carbohydrates?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Energy Values**:
- Carbohydrates provide approximately 4 kilocalories (kcal) of energy per gram when metabolized.

2. **Analyze the Options**:
- **Vitamins**: These are organic compounds essential for various body functions but do not provide any caloric energy. Therefore, they cannot be the answer.
- **Proteins**: Proteins also provide about 4 kcal of energy per gram when metabolized, similar to carbohydrates. This means they do not provide twice the energy of carbohydrates.
- **Minerals**: Like vitamins, minerals are inorganic compounds essential for health but do not provide any caloric energy. Thus, they are not the answer.
- **Fats**: Fats provide approximately 9 kilocalories per gram when metabolized. This is more than twice the energy provided by carbohydrates (4 kcal).

3. **Conclusion**:
- Since fats provide about 9 kcal, which is more than twice the energy provided by carbohydrates (4 kcal), the correct answer to the question is **fats**.

### Final Answer:
- **Fats provide twice as much energy as carbohydrates.**

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