1. What is BMI?

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared.

2. How BMI Relates to Muscle Loss

In men, a low BMI (<18.5) may indicate muscle loss or sarcopenia. Common symptoms include:

• Decreased strength
• Reduced stamina
• Thinning arms and legs
• Difficulty performing daily activities

3. BMI Categories

• Underweight: BMI < 18.5
• Normal weight: BMI 18.5-24.9
• Overweight: BMI 25-29.9
• Obese: BMI ≥ 30

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For height in centimeters, divide by 100 (e.g., 175cm = 1.75m).

5. Frequently Asked Questions (FAQ)

Q1: Can BMI be inaccurate for muscular men?
A: Yes, BMI may overestimate body fat in muscular individuals since it doesn't distinguish between muscle and fat.

Q2: What are signs of muscle loss in men?
A: Weakness, fatigue, shrinking muscle mass, and difficulty climbing stairs or lifting objects.

Q3: At what age does muscle loss typically begin?
A: Muscle mass typically peaks around age 30 and declines by 3-8% per decade after age 30.

Q4: How can I prevent muscle loss?
A: Regular strength training, adequate protein intake, and maintaining physical activity can help prevent muscle loss.

Q5: Should I be concerned if my BMI is low?
A: Consult a doctor if your BMI is below 18.5, especially if accompanied by weakness or fatigue.