BMI: We know it's flawed, so why do we still use it? - Deepstash

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BMI: We know it's flawed, so why do we still use it?

sciencefocus.com

The population-wide BMI statistics show that nearly 60 per cent of people in the UK and US are overweight.

BMI is the ratio of body weight in kilograms divided by the square of one's height in metres. It is represented as kg/m2. 

  • A 'normal' BMI is 20...

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BMI is easy to calculate and easily scalable. For most of us, the higher our BMI, the more fat we tend to have. 

But BMI shouldn't be used by health care professionals as an accurate measure to inform treatment or advice. It has to be used with other information, such as fa...

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DUEL-energy X-ray absorptiometry or DEXA is the gold-standard method of calculating fat percentages. It is very accurate but also expensive and not suitable for use in population-wide studies.

Another approach is the use of body-fat scales, where an undetec...

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Fat cells get bigger when you gain weight and smaller when you lose weight. But the number of cells stays about the same.

Your fat cells are designed to store fat. When cells become full, the fat ends up in the wrong places, such as our muscles or liver, an...

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