Body mass index
Body Mass Index (BMI)
According to the WHO, body mass index (BMI) is a tool that allows you to assess your overall degree of obesity. It shows, depending on your size, the weight range associated with the risks to health.
BMI (kg / m 2 ) is calculated from weight (in kg) divided by height (in m) squared. BMI = weight (kg) / height (m 2 ). The international overweight criterion is a BMI of 25, while that of obesity is a BMI greater than 30
Calculation of body mass index (BMI)
- Healthy weight ( BMI> 18.5)
- Overweight ( BMI> 25)
- Obesity class 1 ( BMI> 30)
- Obesity class 2 ( BMI> 35)
- Obesity class 3 ( BMI> 40) or massive obesity (morbid)
Classification based on body mass index
(Reference: International Obesity Task Force (IOTF) )
|Categories||BMI (kg / m 2 ) *||Risks of co-morbidities|
|Under the normal||<18.5||Low (but greater risk for other clinical problems including mortality)|
|Class II||35.0-39.9||Very high|
|Class III||> 40.0||Extremely high|
* Note: These values are independent of age and sex and correspond to the same level of adipose tissue from one population to another.
** Note: It is important to measure BMI and body fat distribution (waist circumference or hip-hip circumference ratio, etc.) to assess the risk of co-morbidities of obesity. An insufficient BMI <18.5 kg / m 2 represents a greater risk of developing other clinical problems. Free quote
Measure your waistline
Waist circumference is a marker of adiposity complementary to that of BMI. Measuring the waist circumference (abdomen circumference) allows, using a tape measure, to identify excess fat in the abdomen. When waist circumference is greater than 88 cm in women or 102 cm in men , it is considered that there is abdominal obesity. Abdominal obesity is associated with an increased risk of diabetes, hypertension, hypertriglyceridemia, and vascular disease.
|Desirable||Increased risk||High risk|
|<80cm||<94cm||> 80cm||> 94cm||> 88cm||> 102cm|
|<32 “||<37 “||> 32 “||> 37 “||> 35 “||> 40 “|