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 adults based on age, physical activity level, weight, and height.

2. How Does the Calculator Work?

The calculator uses the EER equation:

Where:

• \( Age \) — Age in years
• \( PA \) — Physical Activity coefficient
• \( Weight \) — Body weight in kilograms
• \( Height \) — Height in meters

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

3. Importance of EER Calculation

Details: Accurate EER estimation is crucial for weight management, athletic performance optimization, clinical nutrition planning, and preventing malnutrition or overnutrition.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What are the PA coefficient values?
A: Sedentary = 1.0, Low Active = 1.11, Active = 1.25, Very Active = 1.48

Q2: Is this equation suitable for everyone?
A: This equation is designed for healthy adults. Different equations exist for children, elderly, and specific medical conditions.

Q3: How accurate is the EER calculation?
A: EER provides a good estimate for population averages but individual needs may vary by ±200-300 kcal/day.

Q4: When should EER be recalculated?
A: Recalculate after significant weight changes (>5 kg), changes in activity level, or every 6-12 months for maintenance.

Q5: Can EER be used for weight loss?
A: Yes, subtract 500 kcal/day from EER for approximately 0.5 kg weight loss per week.