Body mass index. A ratio of height to body weight that can provide indications of an individual’s risk for certain health conditions arising from weighing too much or too little. For adults, a BMI of under 18.5 is underweight, 18.5 to 24.9 is healthy, 25.0 to 29.9 is overweight, and 30.0 and over is obese. In HWS, patients can keep track of their BMI with one of our clinic-assigned weight scales.
