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Post it in your weight tracker and review the brief one-page informational link that explains in greater detail "what" BMI is and "how" it is used as one of the tools in our journeys.

There is a formula involved in calculating BMI.  And, in checking the MedHelp BMI Calculator http://www.medhelp.org/calculators/show/1?community  I found it perfectly matches that of the National Institute's of Health.

The actual formula is shown below and at http://www.medhelp.org/medical-information/show/2458/Body-mass-index

Sharing my personal figures to show how this calculation is done.  I'm down from 53.3 to 32.1.

Weight 199 lbs x 703 =139,897
Height 5ft 6 in = 66 inches
139,897 divided by 66 = 2,119.652
2,119.652 divided by 66 = 32.11593
Result = 32.1

MedHelp also has a page explaining BMI in more detail .. http://www.medhelp.org/medical-information/show/2458/Body-mass-index and I've taken the liberty of copying and pasting a short portion of that information below for ease in review.  Please check out the entire one-page post for broader information and look at the accreditation at the bottom of the page.

INFORMATION

A good way to assess your weight is to calculate your body mass index (BMI). Your BMI estimates whether you are at a healthy weight. Being overweight puts strain on your heart and can lead to serious health problems. These problems include type 2 diabetes, heart disease, high blood pressure, sleep apnea, varicose veins, and other chronic conditions. More than 300,000 lives could be saved in the United States each year if everyone maintained a healthy weight!

Your BMI estimates how much you should weigh, based on your height. Here are the steps to calculate it:

* Multiply your weight in pounds by 703.

For example, a woman who weighs 270 pounds and is 68 inches tall has a BMI of 41.0.

Use the chart below to see what category you fall into, and whether you need to be concerned about your weight.

BMI CATEGORY
Below 18.5 Underweight
18.5 - 24.9 Healthy
25.0 - 29.9 Overweight
30.0 - 39.9 Obese
Over 40 Morbidly obese

BMI is not always an accurate way to determine whether you need to lose weight. Here are some exceptions:

* Body builders: Because muscle weighs more than fat, people who are unusually muscular may have a high BMI.
* Elderly: In the elderly it is often better to have a BMI between 25 and 27, rather than under 25. If you are older than 65, for example, a slightly higher BMI may help protect you from osteoporosis.
* Children: While an alarming number of children are obese, do not use this BMI calculator for evaluating a child. Talk to your child's doctor about what an appropriate weight is for his or her age.

Please comment and let us know what you think and if you found this information useful.

REMEMBER:  KNOWLEDGE IS POWER!  Best wishes ..

2 Responses
Hey, Just wanted to add something. My personal trainer at the gym told me never to focus on BMI and here is why:

BMI involves your height and weight. Your height will not change and there is nothing you can do about it. Also, you can lose 10 lbs of fat while gaining 10 lbs of muscle and your BMI will remain unchanged because you still weigh the same. You had made great improvement to your body but your BMI can not take that into consideration.

Just wanted everyone to keep that in mind :-)
Hi Cheyenne - Thank you for sharing this valid point.  While I agree that BMI should not be your only focus .. it is a tool and there are parameters that are healthy and those that are not.

Here is some additional information for everyone's consideration.

BMI is not always an accurate way to determine whether you need to lose weight. Here are some exceptions:

* Body builders: Because muscle weighs more than fat, people who are unusually muscular may have a high BMI.
* Elderly: In the elderly it is often better to have a BMI between 25 and 27, rather than under 25. If you are older than 65, for example, a slightly higher BMI may help protect you from osteoporosis.
* Children: While an alarming number of children are obese, do not use this BMI calculator for evaluating a child. Talk to your child's doctor about what an appropriate weight is for his or her age.

Doctors use a few different methods to determine whether you are overweight. Your doctor may also take your waist circumference and your waist-to-hip ratio into consideration.

In addition, a lot of other factors influence your health. These include diet, physical activity, smoking, blood pressure, cholesterol levels, and blood sugar levels.

While the exact degree to which increasing BMI levels have a bad effect on human health is unclear, most experts conclude that a BMI greater than 30 (obesity) is unhealthy. Exercise, whatever your BMI, can help reduce your risk of cardiovascular disease and diabetes. Remember to always ask your doctor before starting an exercise program.