Experts who study obesity-related issues often use a person’s body mass index (BMI) score as a measure of the degree of obesity. According to the U.S. National Heart Lung and Blood Institute (NHLBI), and the American Society for Metabolic and Bariatric Surgery (ASMBS), BMI scores fall into the following categories:
| |
BMI |
| Normal weight |
18.5-24.9 |
| Overweight |
25-29.9 |
| Obese |
30-34.9 |
| Severely obese |
35-39.9 |
| Morbidly obese |
40 or above |
Your BMI score is very useful. It can give you a sense of how severe a weight problem you may have. People who are morbidly obese (BMI of 40 or more) or severely obese (BMI of 35 – 39.9) with associated medical problems may want to consider weight loss surgery, and your doctor is the person to talk to about weight loss options that are likely to be safe and highly effective.
Calculating your BMI score is very important because it’s an objective assessment of the severity of the problem. Using the NHLBI BMI categories, you can tell exactly where you fit, even if it’s something you may not like to hear.