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There are a number of ways to define and calculate obesity. Currently, the most universally accepted definition is defined by BMI (body mass index). An individual’s BMI is simply their weight in kilograms divided by their height in meters squared. Once calculated the BMI is a two digit number. This number is then compared to a pre-established "normal" BMI, in the range of 20-25.
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BMI
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Excess Pounds
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Normal BMI
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20 - 25
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0
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Overweight
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26 - 29
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0-20
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Mild Obesity
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30 - 33
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20-50
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Moderate Obesity
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34 - 36
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50-75
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Severe Obesity
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37 - 39
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75-100
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Morbid Obesity
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40 - 49
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100-200
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Super Obesity
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50 - 100
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200+
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The term "morbid obesity" describes the relationship between increasing weight and the development of medical problems that are a direct result of the primary process (obesity). These medical problems are termed "comorbidities". It is now well established that dozens of comorbidities are the direct result of being overweight/obese. In fact, it can be shown that an individual’s risk of dying prematurely is substantially increased as his/her weight increases.
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