Body mass index (BMI) is a calculation used to estimate your body fat. Based on the BMI score, you may be categorized as being underweight, of normal weight, overweight, or having obesity.

What is a healthy BMI? A BMI between 18.5 and 24.9 is considered healthy, 25 to 30 is overweight and more than 30 is obese. If your BMI is between 18.5 and 20, you are considered a bit underweight ...

BMI (body mass index) has long been thought of as an indicator of how healthy someone is. The truth is a little more complicated, doctors say.

But the body mass index, or BMI, calculation does not agree. Recently Tessa’s gym teacher weighed the class and told the students to calculate their BMIs and see where they fell on the spectrum ...

Just looking at the calculation to determine BMI, it is quite obvious that it does not take into account factors like muscle mass or bone density, both of which contribute to weight. BMI was first ...

To test this, the researchers ran a variety of tests — including an X-ray scan that measures fat and lean tissue and a BMI calculation — on 2,840 young people who were either 10 or 18 years ...

Dr. Leana Wen: Body mass index, or BMI, is a calculation performed by dividing a patient’s weight in kilograms by their height in meters squared.

DEAR DR. ROACH: For years, my BMI index has been right at or below 25. It’s OK, not great, but at least I made it to age 82! On my recent visit to my primary care physician, my BMI was slightly ...

Our body mass index is categorized into underweight, ... Ancel Keys published a study of roughly 7,000 healthy, mostly middle-aged white men, creating what we now know as the BMI calculation.

BMI was first worked out in the 1830s, when a Belgian astronomer, mathematician, statistician and sociologist worked out the sum. The aim was to figure out whether a person was a healthy weight ...