What is BMI?
Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m². It provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems.
BMI Categories
Underweight: BMI less than 18.5
Normal weight: BMI 18.5-24.9
Overweight: BMI 25-29.9
Obese: BMI 30 or greater
Limitations
BMI does not measure body fat directly and may not be accurate for athletes with high muscle mass, elderly people, or certain ethnic groups. It should be used as a screening tool, not a diagnostic tool.
Quick Tips
- BMI alone doesn't reflect overall health
- TDEE varies based on activity level
- Consult a healthcare professional for medical decisions
Frequently Asked Questions
A healthy BMI is between 18.5 and 24.9 for most adults.
No, BMI may not be accurate for athletes, pregnant women, elderly, or people with high muscle mass.
Checking your BMI once every few months is sufficient unless you're actively trying to lose or gain weight.
BMI can indicate increased risk for conditions like heart disease and diabetes, but it's not the only factor.
Consult a healthcare provider for personalized advice on diet, exercise, and healthy weight management.