Body Mass index if the relationship of the body’s weight to the height of the individual measured in kg/Square metre. The normal  BMI is between 19 to 25kg/sq. metre. BMI over 25 and under 30 is overweight, while Obesity starts from BMI of 30.

Obesity is a clinical condition where the person is perceived as too fat, and this is connected to many disease conditions like diabetes, hypertension, certain cancers and respiratory diseases. Obesity is a disease of lifestyle, so eating unhealthy diets containing high fat, high sugar, high starch and doing little to burn off this food in our body causes undue weight gains. Latest research now shows that Obesity is directly related to what we eat, and that exercise helps us to maintain weight. So there is no point eating excessively and hoping on exercise to burn this excess calories off. This does not work in practice.