1. What is the Mifflin-St Jeor Equation?

The Mifflin-St Jeor equation is considered the most accurate for estimating basal metabolic rate (BMR) and total daily energy expenditure (TDEE) in healthy individuals. It provides a more accurate assessment of calorie needs than older equations.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor equation for women:

Where:

• \( weight \) — Body weight in kilograms
• \( height \) — Height in centimeters
• \( age \) — Age in years
• \( activity\_factor \) — Multiplier based on activity level

Explanation: The equation calculates your basal metabolic rate (calories burned at rest) and then multiplies it by an activity factor to estimate total daily energy expenditure.

3. Importance of Calorie Calculation

Details: Accurate calorie estimation is crucial for weight management, whether your goal is weight loss, maintenance, or gain. Knowing your TDEE helps create appropriate dietary plans.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, age in years, and select your activity level. For accurate results, use recent measurements and be honest about your activity level.

5. Frequently Asked Questions (FAQ)

Q1: Why use Mifflin-St Jeor instead of Harris-Benedict?
A: The Mifflin-St Jeor equation is more accurate for modern populations and has been validated in numerous studies.

Q2: What are typical calorie needs?
A: Most women need 1600-2400 kcal/day, but this varies greatly based on size, age, and activity level.

Q3: When should measurements be taken?
A: For consistency, measure weight in the morning after using the bathroom and before eating. Height should be measured without shoes.

Q4: Are there limitations to this equation?
A: Less accurate for very muscular individuals, those with high body fat percentages, pregnant women, and certain medical conditions.

Q5: How often should I recalculate?
A: Recalculate whenever your weight changes significantly (5+ kg) or your activity level changes substantially.