1. What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic physiological functions at rest. It represents the minimum energy required to keep your body functioning, including breathing, circulation, and cell production.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor Equation:

Where:

• \( weight \) — Body weight in kilograms
• \( height \) — Height in centimeters
• \( age \) — Age in years
• \( gender\_factor \) — +5 for men, -161 for women

Explanation: This equation accounts for the fact that men typically have more muscle mass than women, which affects their basal metabolic rate.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for weight management, especially after bariatric surgery. It helps determine your daily caloric needs and create effective weight loss or maintenance plans.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, age in years, and select your gender. For accurate results, measure your weight and height precisely.

5. Frequently Asked Questions (FAQ)

Q1: Why is BMR different for men and women?
A: Men generally have more muscle mass and less body fat than women of the same weight, resulting in a higher BMR.

Q2: How does weight loss surgery affect BMR?
A: Bariatric surgery may initially lower BMR due to reduced calorie intake and weight loss, but it stabilizes as weight stabilizes.

Q3: What are typical BMR values?
A: Average BMR ranges from 1200-2000 kcal/day for women and 1500-2500 kcal/day for men, varying by size and body composition.

Q4: Should I eat below my BMR to lose weight?
A: It's not recommended to consistently eat below BMR as this can slow metabolism. A modest deficit (300-500 kcal/day) is safer.

Q5: How often should I recalculate my BMR?
A: Recalculate after significant weight changes (5+ kg) or every 3-6 months during active weight loss.