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Calorie Calculator For Weight Loss With Body Fat Percentage

Calorie Equation:

\[ \text{Calories} = (370 + 21.6 \times \text{lean body mass}) \times \text{activity factor} - 500 \]

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1. What is the Calorie Equation?

The calorie equation estimates daily calorie needs for weight loss based on lean body mass and activity level. It provides a personalized approach to creating a calorie deficit for effective weight management while preserving muscle mass.

2. How Does the Calculator Work?

The calculator uses the calorie equation:

\[ \text{Calories} = (370 + 21.6 \times \text{lean body mass}) \times \text{activity factor} - 500 \]

Where:

Explanation: The equation calculates maintenance calories based on lean body mass, adjusts for activity level, and creates a 500-calorie deficit for sustainable weight loss.

3. Importance of Calorie Calculation

Details: Accurate calorie estimation is crucial for effective weight loss while maintaining muscle mass and ensuring adequate energy for daily activities.

4. Using the Calculator

Tips: Enter lean body mass in kilograms and select your appropriate activity factor based on your daily physical activity level.

5. Frequently Asked Questions (FAQ)

Q1: How do I calculate my lean body mass?
A: Lean body mass = Total body weight × (1 - body fat percentage/100). Body fat percentage can be measured using various methods like DEXA, calipers, or bioelectrical impedance.

Q2: Why use lean body mass instead of total weight?
A: Lean body mass is a better indicator of metabolic rate since muscle tissue burns more calories at rest than fat tissue.

Q3: Is a 500-calorie deficit appropriate for everyone?
A: A 500-calorie deficit typically results in about 0.5kg weight loss per week. This may need adjustment based on individual factors and weight loss goals.

Q4: How often should I recalculate my calorie needs?
A: Recalculate every 4-6 weeks or after significant weight loss (5+ kg) as your metabolism and body composition change.

Q5: Should I adjust calories based on exercise?
A: The activity factor already accounts for regular exercise. For additional intense workouts, you may need to slightly increase calories to maintain energy levels.

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