BMI takes into account both height and weight but not body composition. Body mass index (BMI) is a common tool for deciding whether a person has an appropriate body weight. It measures a person’s weight in relation to their height. According to the National Institutes of Health (NIH):
Body mass index ( BMI) is a common tool for deciding whether a person has an appropriate body weight. It measures a person’s weight in relation to their height. A BMI of less than 18.5 means that a person is underweight. A BMI of between 18.5 and 24.9 is ideal. A BMI of between 25 and 29.9 is overweight.
Weight is often used to indicate the general health and well being of a person. In order to help with this, there is also something called the Body Mass Index (BMI). This index a measure of relative weight measured according to the person’s weight and height.
