Obesity may simply be defined as abnormal and excessive fat accumulation in the body. Another definition is that the body fat tissue is more than 25% for males and 30% for females. One of the heritable, environmental and cultural factors may be effective for the formation of obesity as well as all reasons may also be combined.
Body Mass Index- BMI is used to determine the obesity level. Body mass index is a value found by dividing the weight of a person in kilogram unit to the square value of height in metre unit.
BMI (kg/m2)): body weight (kg) / (height2)) (m)
If under 18.5 kg/m2
If between 18.5-24.9 kg/m2
If between 25-29.9 kg/m2
If between 30-34.9 kg/m2
If between 35-39.9 kg/m2
If between 40 -50 kg/m2
If over 50 kg/m2
Patients having body mass index over 40 and unable to lose weight despite diet and exercise.
Patients having body mass index between 35-40 also having additional diseases such as hypertension, diabetes or sleep apnea in connection with obesity and unable to lose weight despite diet and exercise.