1. What is the Estimated Energy Requirement?

The Estimated Energy Requirement (EER) represents the average dietary energy intake that is predicted to maintain energy balance in a healthy adult of a defined age, gender, weight, height, and level of physical activity consistent with good health.

2. How Does the Calculator Work?

The calculator uses the EER equation for men:

Where:

• \( A \) — Age in years
• \( PA \) — Physical Activity Level
• \( W \) — Weight in kilograms
• \( H \) — Height in meters

Explanation: The equation accounts for basal metabolic rate and physical activity level to estimate daily caloric needs.

3. Importance of EER Calculation

Details: Accurate EER estimation is crucial for maintaining healthy weight, planning diets, and managing nutrition in clinical settings.

4. Using the Calculator

Tips: Enter age in years, select physical activity level, weight in kg, and height in meters. All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are the PA level categories?
A: Sedentary (1.0), Low Active (1.11), Active (1.25), Very Active (1.48).

Q2: Is this equation suitable for women?
A: No, this is the male equation. Women should use a different equation.

Q3: What's a typical EER range?
A: For average adult men, typically 2000-3000 kcal/day depending on size and activity.

Q4: How accurate is this estimate?
A: It provides a reasonable estimate for healthy individuals but may need adjustment for specific cases.

Q5: Should this be used for weight loss planning?
A: For weight loss, typically 500 kcal/day is subtracted from maintenance EER.