Body-Mass Index (BMI)
Body-Mass Index (BMI)
The body-mass index (BMI) is calculated by dividing your weight (in kg) by the square of your height (in meters). A BMI greater than 25 may indicate that you are overweight, while a BMI greater than 30 generally indicates obesity.
A BMI of 27.8 for men and 27.3 for women is the cutoff point for obesity used in the National Health and Nutrition Examination Survey (NHANES II). The National Academy of Sciences' diet and health report suggests the following normal BMI ranges:
-
Age
Normal BMI Range
45 to 54 years
22 to 27
55 to 65 years
23 to 28
Over 65 years
24 to 29
(Department of Health and Human Services Consensus Conference on Obesity, April,1 1992)
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