Can you have an average BMI and still be underweight?

It is possible to have an average BMI and still be underweight. BMI, or Body Mass Index, is calculated by dividing a person's weight in kilograms by the square of their height in meters. The resulting number is used to classify a person's weight as underweight, normal, overweight, or obese. The average BMI for adults is between 18.5 and 24.9. People with a BMI of less than 18.5 are considered underweight.

There are a few reasons why a person with an average BMI could still be underweight. For example, a person who is very tall may have an average BMI but still weigh less than what is considered healthy for their height. Another possibility is that a person may have lost weight rapidly due to illness or surgery, resulting in an average BMI but an insufficient body fat percentage.

It is important to note that BMI is not a perfect measure of health. It does not take into account muscle mass or body fat distribution. As a result, some people who are considered underweight according to their BMI may actually be healthy. Conversely, some people who are considered normal weight or overweight according to their BMI may actually have an unhealthy body fat percentage.

For this reason, it is important to talk to a healthcare provider to get a personalized evaluation of your health and weight.