Criteria for obesity

The World Health Organization defines overweight and obesity as abnormal or excessive accumulation of fat that is harmful to health. So what kind of overweight and obesity is likely to cause fat accumulation or be harmful to health?

The following data criteria are for the obesity judgment:


BMI is equal to weight (KG) divided by height (m) squared. A BMI of less than 18.5 is considered as underweight. A BMI of 18.5 to 23.9 was considered as normal weight; A BMI of 24 to 27.9 is considered as overweight; A BMI of 28 or higher is considered as obesity.

Waist-to-hip ratio ratio

It is suggested by the Guidelines for Prevention and Control of Overweight and Obesity in Chinese Adults: the obesity standard is over 85cm of waist circumference for the male and over 80cm of waist circumference for the female.

Standard weight measurement

Standard weight is equal to a height value subtracted by 105, more than 10% of the standard weight is overweight; more than 20% to 30% of the standard body weight is mild obesity; 30% to 50% above the standard body weight is moderately obesity, and 50% more than the standard body weight is severely obesity.