Weight that is higher than what is considered healthy, based on a person’s height, is called “overweight” or “obesity.” A person with obesity has too much body fat. A person with overweight weighs too much, but the extra weight may come from muscle, bone, body water, and/or fat.1
Healthcare providers often use body mass index (BMI) to determine if a person is affected by overweight or obesity. Adults who have a BMI between 25 and 29.9 are generally considered to be affected by overweight. Adults who have a BMI of 30 or higher are considered to be affected by obesity.2 A child’s weight status is determined using a special chart that takes into account the child’s age and sex.3 Learn more about BMI and other measurements of overweight and obesity.
Obesity is a chronic disease. Being affected by obesity increases a person’s risk for health conditions, such as diabetes, cardiovascular disease, bone and joint problems, and circulatory issues, to name a few.
The U.S. Centers for Disease Control and Prevention gathers and reports statistics on obesity and overweight in adults and children at https://www.cdc.gov/obesity/php/data-research.
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