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What is obesity?

What is obesity?

Overweight and obesity are defined as abnormal or excessive fat accumulation that presents a risk to health.

In medical terms obesity is defined as a Body Mass Index of over 30kg/m2.
Obesity is no longer considered to be caused by a lack of self-control, and excessive calorie intake. The World Health Organization has classified obesity as a chronic progressive disease resulting from multiple environmental and genetic factors.

BMI Calculator

Enter your height and weight then select the BMI field to calculate

What is the Body Mass Index (BMI)?

The body mass index (BMI) generally reflects the amount of excessive body fat an adult has, although there are certain exceptions, such as the BMI of an athlete, a body builder or pregnant woman. BMI does not necessarily take into account a person’s distribution of fat (abdominal vs. peripheral)

BMI takes into consideration your height and weight, and is calculated using following formula or the calculator below:

Weight in kilograms divided by Height in meters squared (BMI = kg/m2)

Body size categories using BMI are based upon the ranges of BMI associated with a certain risk for mortality.

The categories and respective BMI categories are:​

Normal Size
18.9 to 24.9

25 to 29.9

Class I, Obesity
30 to 34.9

Class II, Serious Obesity
35 to 39.9

Class III, Severe Obesity
40 and greater

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