The BMI was introduced in the early 19th century by a Belgian named Lambert Adolphe Jacques Quetelet. He was a mathematician, not a physician. He produced the formula to give a quick and easy way to measure the degree of obesity of the general population to assist the government in allocating resources.
Who determines BMI?
Body Mass Index (BMI) is a person’s weight in kilograms divided by the square of height in meters. A high BMI can be an indicator of high body fatness. To calculate BMI, see the Adult BMI Calculator or determine BMI by finding your height and weight in this BMI Index Chart .
When did BMI standards change?
In 1998, the U.S. National Institutes of Health and the Centers for Disease Control and Prevention brought U.S. definitions in line with World Health Organization guidelines, lowering the normal/overweight cut-off from BMI 27.8 to BMI 25.
Why the BMI scale is wrong?
BMI (body mass index), which is based on the height and weight of a person, is an inaccurate measure of body fat content and does not take into account muscle mass, bone density, overall body composition, and racial and sex differences, say researchers from the Perelman School of Medicine, University of Pennsylvania.
What is BMI based on?
BMI is a number based on your weight and height. In general, the higher the number, the more body fat a person has. BMI is often used as a screening tool to decide if your weight might be putting you at risk for health problems such as heart disease, diabetes, and cancer.
What is the normal range of BMI?
How is BMI interpreted for adults?BMIWeight StatusBelow 18.5Underweight18.5 – 24.9Normal or Healthy Weight25.0 – 29.9Overweight30.0 and AboveObese
What is the optimal BMI?
For most adults, an ideal BMI is in the 18.5 to 24.9 range. For children and young people aged 2 to 18, the BMI calculation takes into account age and gender as well as height and weight. If your BMI is: below 18.5 – you’re in the underweight range.
What is more accurate than BMI?
Waist-to-height ratio more accurate than BMI in identifying obesity, new study shows. Summary: Calculating a person’s waist-to-height ratio is the most accurate and efficient way of identifying whether or not they are at risk of obesity in clinical practice, a new study shows.
What should my BMI be for my age?
A BMI of between 18.5 and 24.9 is ideal. A BMI of between 25 and 29.9 is overweight. A BMI over 30 indicates obesity.
Do doctors still use BMI?
Body mass index, or BMI, has been used for over 100 years to help health professionals decide whether a patient is overweight or underweight. It is used in population studies, by doctors, personal trainers, and others.
Does BMI actually matter?
Body mass index is the standard metric for determining who is normal-weight, overweight and obese, but BMI is not an accurate measure of fat, and doesn’t explain the causes of poor health, scientists argue in an editorial today (Aug. 22) in the journal Science.
Why is my BMI so high but not fat?
Muscle mass can make you heavier and increase your BMI.
Because muscles are more dense and heavier than fat, bodybuilders and other professional athletes like football players are often considered obese or overweight based on their BMI alone. If you have high muscle composition, you’re probably not overweight or obese.
Is the BMI flawed?
According to Jeffrey Hunger, a doctoral student in UCSB’s Department of Psychological & Brain Science, and a co-author of the paper, BMI is a deeply flawed measure of health. “In the overweight BMI category, 47 percent are perfectly healthy,” he said.
What is the best BMI for a woman?
Doctors consider a healthy BMI for women to be 18.5–24.9. A BMI of 30 or above may indicate obesity. BMI measurements can help someone understand whether they have underweight or overweight.
How much should a 5’2 female weigh?
Height and Weight ChartHeightWeight5’97 to 127 lbs.128 to 152 lbs.5′ 1″100 to 131 lbs.132 to 157 lbs.5′ 2″104 to 135 lbs.136 to 163 lbs.5′ 3″107 to 140 lbs.141 to 168 lbs.Ещё 17 строк
How do you interpret BMI?
Your BMI will fit into one of 5 bands:
- under 18.5 – This is described as underweight.
- between 18.5 and 24.9 – This is described as the ‘healthy range’.
- between 25 and 29.9 – This is described as overweight.
- between 30 and 39.9 – This is described as obesity.
- 40 or over – This is described as severe obesity.