1. What is Estimated Energy Requirement?

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:

Where:

• \( BMR \) — Basal Metabolic Rate (kcal/day)
• \( Activity\ Factor \) — Physical activity level multiplier

Activity Factor Categories:

• Sedentary (1.2): Little or no exercise
• Lightly Active (1.375): Light exercise 1-3 days/week
• Moderately Active (1.55): Moderate exercise 3-5 days/week
• Very Active (1.725): Hard exercise 6-7 days/week
• Extremely Active (1.9): Very hard exercise, physical job

3. Importance of EER Calculation

Details: EER calculation is essential for weight management, athletic performance optimization, clinical nutrition assessment, and developing personalized dietary plans.

4. Using the Calculator

Tips: Enter your BMR in kcal/day and select the appropriate activity factor based on your physical activity level. Both values must be valid (BMR > 0).

5. Frequently Asked Questions (FAQ)

Q1: How is BMR different from EER?
A: BMR is the energy expended at complete rest, while EER includes energy for physical activity and accounts for total daily energy expenditure.

Q2: What factors affect EER?
A: Age, gender, weight, height, body composition, physical activity level, and metabolic health all influence EER.

Q3: How accurate is this calculation?
A: This provides a good estimate for most individuals, but individual variations in metabolism may affect accuracy.

Q4: Should EER be adjusted for weight goals?
A: Yes, for weight loss subtract 500 kcal/day, for weight gain add 500 kcal/day from calculated EER.

Q5: How often should EER be recalculated?
A: Recalculate every 3-6 months or when significant changes occur in weight, activity level, or body composition.