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.

2. How Does the Calculator Work?

The calculator uses the EER equation for women:

Where:

• \( A \) — Age in years
• \( PA \) — Physical Activity Level (dimensionless)
• \( W \) — 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 weight management, nutritional planning, and ensuring adequate energy intake for health maintenance.

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 (1.12), Active (1.27), and Very Active (1.45).

Q2: Is this equation suitable for men?
A: No, this specific equation is for women. Men require a different equation.

Q3: How accurate is the EER calculation?
A: It provides a good estimate for most healthy women but individual variations exist.

Q4: Should EER be used for weight loss?
A: For weight loss, typically 500-1000 kcal/day is subtracted from EER, depending on goals.

Q5: How often should EER be recalculated?
A: Recalculate with significant changes in weight, activity level, or life stage.