Obesity is a condition where a man has accumulated so much body fat that it may negatively affect their health. If a person's body weight is higher than at least by 20% it should be, he or she is considered obese. If BMI is between 25 and 29.9 you are considered overweight. If BMI is 30 or over you are considered obese. Obesity is most normally brought on by a combination of excessive food intake, lack of physical activity and hereditary susceptibility. Some cases are brought about essentially by genes, endocrine disorders, mental illness or medications. Obesity is controlled through a blend of social changes and individual decisions. Changes to eating routine and exercises are the fundamental medicines. Diet quality can be enhanced by decreasing the utilization energy-dense foods, such as those high in fat and sugars, and by increasing the intake of dietary fiber.