A normal human being requires how much calories per day?

Options

A. 2500 kcal
B. 4000 kcal
C. 5000 kcal
D. 686 kcal

Answer

To determine how many calories a normal human being requires per day, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Caloric Needs**: Recognize that calories are essential for maintaining body weight and energy levels. They are necessary for various bodily functions.

2. **Factors Influencing Caloric Intake**: Identify the factors that influence how many calories a person needs. These include:
- Height
- Weight
- Gender
- Age
- Daily activity level

3. **General Caloric Range**: Acknowledge that the daily calorie intake for an average human being typically falls within a specific range. For adults, this range is generally between 2,000 to 3,000 kilocalories.

4. **Determining the Average Requirement**: Based on the general range, we can conclude that a normal human being requires around 2,500 kilocalories per day as a typical average.

5. **Consequences of Imbalance**: Understand the implications of consuming calories outside this range. Consuming more than this can lead to obesity, while consuming less can lead to malnutrition.

6. **Final Answer**: Therefore, the correct answer to the question of how many calories a normal human being requires per day is **2,500 kilocalories**.