When a person has a weight which is about 20% more than the ideal body weight a person is said to be obese. Obesity is graded in terms of BMI (Body Mass Index) which is a statistical measurement derived from one’s height and weight.
At BMI more than 23, people start showing signs of obesity. A BMI of more than 30 indicates that you are a behavioral method have failed in controlling your weight and you are a candidate for bariatric / weight loss surgery.