1. What is the EER Equation?

The Estimated Energy Requirement (EER) equation calculates the average dietary energy intake needed to maintain energy balance in healthy individuals based on age, physical activity level, weight, and height.

2. How Does the Calculator Work?

The calculator uses the EER equation:

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 activity level to estimate daily caloric needs.

3. Importance of EER Calculation

Details: Knowing your EER helps in weight management, nutritional planning, and ensuring adequate energy intake for health and performance.

4. Using the Calculator

Tips: Enter your age in years, select your 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). Choose based on your daily activity.

Q2: Is this equation suitable for everyone?
A: This equation is designed for adults. Different equations exist for children, pregnant women, and elderly.

Q3: How accurate is the EER calculation?
A: It provides a good estimate but individual variations exist due to metabolism, body composition, and other factors.

Q4: Should I adjust my intake based on weight goals?
A: For weight loss, consume 500 kcal/day less than EER; for weight gain, consume 500 kcal/day more than EER.

Q5: How often should I recalculate my EER?
A: Recalculate when your weight changes by ±5 kg or your activity level changes significantly.