Introduction :When a person is overweight, health professionals advise him to lose weight. Losing weight means burning extra fat accumulated in tissues of body. In this process there are chances that we may lose portion of lean muscle mass.
The resent statistics and researches have revealed that obesity or over weight is a growing global health problem. A person is called overweight or obese, when his/her weight is more than normal. Factors like age, height and race are considered to calculate normal weight of a person.