The duality of the BMI is that, while it is easy to use as a general calculation, it is limited as to how accurate and pertinent the data obtained from it can be. Generally, the index is suitable for recognizing trends within sedentary or overweight individuals because there is a smaller margin of error. 

The accumulation of too much fat in the body, leads to serious health risks, including death in severe cases of obesity, especially morbid obesity. Therefore, irrespective of the causes of obesity, it is essential for obese people to take suitable steps for losing as much weight as is necessary to bring it to the level of normal BMI.