BMI FAQ 2025: Most Common Questions Answered

What is BMI?

BMI (Body Mass Index) is a number calculated from your weight and height to assess if you are underweight, normal, overweight, or obese.

How do I calculate my BMI?

BMI = weight (kg) / [height (m)]². Use an online calculator for convenience.

What is a healthy BMI range?

18.5 - 24.9 is considered healthy for most adults.

Is BMI accurate for everyone?

No. It may not be accurate for athletes, children, elderly, or pregnant women.

What are the BMI categories?

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

Can I use BMI for children?

Children use BMI percentiles, not adult categories. Consult a pediatrician.

Does muscle affect BMI?

Yes. Muscular people may have a high BMI but low body fat.

How often should I check my BMI?

Check every few months or during health checkups.

What should I do if my BMI is high?

Consult a healthcare provider for advice on weight management.

Where can I learn more?

Visit trusted health websites like WHO, CDC, or talk to your doctor.

Conclusion

BMI is a useful screening tool, but not a perfect measure for everyone. Use it as a starting point for health discussions in 2025.

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