Thursday, July 9, 2009

What's your BMI?

Have you ever wondered what your BMI (Body Mass Index) is? BMI is used to estimate your total amount of body fat. It is calculated by dividing your weight in kilograms by your height in meters squared (m2).

BMI Categories:

* Underweight = <18.5
* Normal weight = 18.5-24.9
* Overweight = 25-29.9
* Obesity = BMI of 30 or greater

For example: wt= 50 kg ht= 1.52 m
BMI = wt (kg)/ ht (m2) = 50/ 2.31
= 21.6 = normal weight

But BMI has limitations also. It may not be accurate in some cases. It can overestimate body fat in athletes or pregnant women. It can underestimate body fat in the elderly.

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