Defining the Threshold: Understanding Overweight and Obesity Criteria
A recent discussion has sparked on social media regarding the threshold for being considered overweight or obese. According to the World Health Organization's standards, the Body Mass Index (BMI) is a widely used indicator to measure body weight, with a normal range between 18.5 and 24.9. In China, the health authority defines a normal BMI range as between 18.5 and 24, with a BMI between 24 and 28 considered overweight, and 28 or above considered obese. This has led to a national conversation on what constitutes being overweight or obese, with many netizens sharing their own experiences and concerns about their weight.

11 March 2025
The definition of overweight and obesity is crucial, with overweight being defined as a BMI between 24 and 28, and obesity being defined as a BMI of 28 or above. To understand this definition, it's essential to know how BMI is calculated, which is by dividing an individual's weight in kilograms by the square of their height in meters. However, BMI is not a perfect measure, as it may not be suitable for everyone, particularly athletes or individuals with a high muscle mass. Additionally, relying solely on BMI to determine health status is not enough; other factors such as body fat percentage, waist circumference, and overall health should also be considered.
Being overweight or obese increases the risk of various chronic diseases, including cardiovascular disease, diabetes, and high blood pressure. These health risks are closely linked to the distribution of body fat, particularly around the waist and abdominal areas. The waist-to-hip ratio and the amount of visceral fat are crucial indicators of health risks. Visceral fat, which accumulates around internal organs, is particularly hazardous as it can lead to inflammation and increase the risk of chronic diseases.
A person's weight alone is not a reliable indicator of their health status. Even someone who regularly exercises and has a high muscle mass may weigh more, but their body fat distribution is what matters. Therefore, it's essential to consider waist-to-hip ratio, abdominal fat, and visceral fat when assessing whether someone is overweight or obese. Determining the point at which one is considered overweight or obese requires a comprehensive assessment that takes into account individual circumstances and multiple indicators.

Besides monitoring BMI and body fat percentage, maintaining a healthy diet and regular exercise habits are vital for preventing overweight and obesity. It is also essential to recognize the limitations of current measurement tools and to seek professional advice for an accurate assessment of one's health status. In conclusion, the determination of being overweight or obese is a multifaceted issue that requires consideration of various factors, including but not limited to BMI and body fat percentage. A healthy lifestyle, encompassing a balanced diet and regular physical activity, is fundamental in preventing obesity. Furthermore, acknowledging the limitations of conventional measurement methods is crucial, and individuals should consult healthcare professionals for personalized assessments and guidance. By adopting a comprehensive approach to health and wellness, individuals can better navigate the complexities of weight management and reduce the risk of obesity-related health issues.