A good BMI, or body mass index, is a measure of body fat based on a persons height and weight. It is used to broadly define different weight groups in adults 20 years old or older. The BMI calculation divides an adults weight in kilograms by their height in meters squared. For most adults, an ideal BMI is in the 18.5 to 24.9 range. Here are the BMI ranges:
- Underweight: BMI is less than 18.5
- Normal weight: BMI is 18.5 to 24.9
- Overweight: BMI is 25 to 29.9
- Obese: BMI is 30 or more
Its important to note that BMI is a screening measure and is not intended to diagnose disease or illness. BMI doesnt take into account body composition, such as muscle, fat, and bone density, and can overestimate body fat in athletes and people with a muscular build or a larger body frame. Conversely, BMI can underestimate body fat in older adults and anyone who has lost muscle. Therefore, its best to consult with a healthcare provider who can perform appropriate health assessments to evaluate an individuals health status and risks.