Obesity is a health care problem in which surplus human body fat has accrued to the extent that it might have an adverse result on wellbeing, leading to lowered daily life expectancy and/or increased health difficulties. Human body mass index (BMI), a measurement which compares excess weight and height, defines men and women as overweight (pre-obese) if their BMI is amongst 25 and thirty kg/m2, and obese when it is better than 30 kg/m2.