What is BMI?

Understanding Body Mass Index and its implications for health.

Body Mass Index (BMI)

BMI, or Body Mass Index, is a measure of body fat based on height and weight that applies to adult men and women. It provides a simple numeric measure of a person's thickness or thinness, allowing health professionals to discuss weight problems more objectively with their patients.

How is BMI Calculated?

BMI is calculated using the following formula:

BMI = weight (kg) / [height (m)]²

Or in imperial units: BMI = [weight (lbs) * 703] / [height (in)]²

BMI Categories

While BMI can be a useful screening tool, it does have limitations. It doesn't distinguish between muscle and fat mass, so athletes may have a high BMI without being overweight.

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