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What Your BMI Means

Body Mass Index (BMI) is one of the most accurate ways to determine when extra pounds translate into health risks.  BMI is a measure which takes into account a person’s weight and height to gauge total body fat in adults. Someone with a BMI of 26 to 27 is about 20 percent overweight, which is generally believed to carry moderate health risks. A BMI of 30 and higher is considered obese. The higher the BMI, the greater the risk of developing additional health problems. 

Heart disease, diabetes and high blood pressure are all linked to being overweight.  A BMI of 30 and over increases the risk of death from any cause by 50 to 150 percent, according to some estimates. According to health experts, people who are overweight but have no other health risk factors (such as high cholesterol or high blood pressure) should eat healthier and exercise to keep from gaining additional weight. For people who are overweight and also have health risks, they recommend trying to actively lose weight. Be sure to consult your doctor or other health professional before beginning any exercise or weight-loss program.

In June 1998, the federal government announced guidelines which create a new definition of a healthy weight -- a BMI of 24 or less. So now a BMI of 25 to 29.9 is considered overweight. Individuals who fall into the BMI range of 25 to 34.9, and have a waist size of over 40 inches for men and 35 inches for women, are considered to be at especially high risk for health problems.

Information from

BMI Score Category

18.5 or less: Underweight
18.5 - 24.9: Normal

25.0 - 29.9: Overweight
30.0 - 39.9: Obesity

40.0 - 49.9: Morbid Obesity
50 and greater: Super Morbid Obesity

If your BMI is below 20:

This indicates a lean BMI, which means you have a low amount of body fat.  If you are an athlete, this can be desirable.  If you are not an athlete, a lean BMI can indicate that your weight may be too low which may lower your immunity.

If your BMI is between 20 and 22:

This indicates the ideal, healthy amount of body fat, which is associated with living longest, and the lowest incidence of serious illness.  Coincidentally, it seems this ratio is what many individuals perceive to be the most aesthetically attractive.

If your BMI is between 22 and 25:

This is still considered an acceptable range, and is associated with good health.

If your BMI is between 25 and 30:

You are considered “Hefty” and should finds ways to lower your weight, through diet and exercise.  You are at increased risk for a variety of illnesses at your present weight.

If your BMI is over 30:

This indicates an unhealthy condition, your excess “Prosperity” is putting you at risk for heart disease, diabetes, high blood pressure, gall bladder disease and some cancers. 

Information Revised from: “Ben’s Unpretentious Home Page”:
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