Body Mass Index

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Body Mass Index (BMI) is a measurement based on height and weight as it relates to body fat.  It is used to determine how much risk a person has of developing certain health problems because of his or her weight.  The higher the BMI the higher the risk a person has to develop additional health conditions such as diabetes, hypertension, high cholesterol, sleep apnea, etc.

Calculating BMI

BMI =  weight in pounds x 703                       OR                   BMI = weight in kilograms
              (Height in Inches)2                                                         (Height in Meters)2

 

Definition

BMI

Risk Level

Underweight

< 18.5

Preferred

18.5 – 24.9

Low

Overweight

25 – 29.9

Increased

Obese

> 30

High to Extremely High

Class I Obesity = Obesity

30 – 35

High

Class II Obesity = Severe Obesity

35 – 39.9

Very High

Class III Obesity = Morbid Obesity

> 40

Extremely High

Super Morbid Obesity

> 50

Extremely High

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