What Is Your Body Mass Index (BMI)?

 What Is Your Body Mass Index (BMI)?

BMI was first introduced in 1830-1850 by a Belgium astronomer.

The modern term “Body Mass Index” (BMI) for the ratio of human body weight to squared height.

It was coined in a paper published in the July 1972 edition of the Journal of Chronic Diseases by Ancel Keys.

BMI is universally expressed in kg/m², resulting from mass in kilograms and height in meters.

Why Calculate BMI?

A person’s BMI can be used as a screening tool for weight issues.

However, it is not indicative of a person’s overall health.

BMI is used as a general rule to determine if an adult patient is underweight, normal, overweight, obese or morbidly obese.

BMI Ranges:

Underweight: Less than 18.5 BMI

Normal: Between 18.5 and 25 BMI

Overweight: Between 25 and 30 BMI

Obese: Between 30 and 35 BMI

Morbidly Obese: Over 35 BMI

So What Is Your BMI? Calculate your BMI With Our BMI Calculator:

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BMI Table For Adults:

For Children ages 2-20, BMI is used differently as a comparison with other children of the same age.

Children below 5 percent BMI are considered underweight and obese if they are above 95 percent BMI compared to other children their age.

BMI roughly correlates to increasing heart disease, diabetes, arthritis, and other chronic diseases.

There is some debate about BMI and it’s use and accuracy.

Can BMI be misleading?

BMI can be misleading in those patients with larger than average muscle mass and higher than average fat mass.

An example where BMI does not correlate with health status would be a body builder with low body fat that may screen with an obese BMI.

Another example would be a middle aged female with normal BMI may actually have very high body fat percentage and low muscle mass (aka- skinny fat).

The important factors that make up weight are muscle and fat.

Definitions of ‘overweight’ based on body fat percentages use a male threshold of 25% body fat and female of 33%.

Studies show that BMI may average a 2-point discrepancy when analyzing bod fat percentage.

BMI for Women vs. Men

Women carry more body fat then men typically.

There is debate whether there would be different overweight cut off values for men and women.

However, men usually carry more muscle which weighs more.

Knowing these variables using body composition will help shed more light on a patient’s true health status and help health care providers better direct patients on their health risks and nutrition and exercise goals.

BMI is a quick screening tool that can help establish some risks but ultimately each individual patient should be assessed based on their actual body fat percentage.

If you are located near Doylestown, Warrington, or Newtown, PA or the surrounding cities and are interested in learning more about your BMI or need help losing weight, schedule a medical weight loss appointment with Dr. Luciano.

There are more accurate tools that Dr. Luciano utilizes in his practice such as our Body Composition Test.

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