Why is BMI so important?

Your BMI is a measurement that is a ratio of your weight and height. It’s a good way to gauge whether your weight is in healthy proportion to your height. In fact, knowing your BMI can help you – and your GP – determine any health risks you may face if it’s outside of the healthy range.

Is BMI a useful measure of health?

BMI is a useful indicator of health at the population level. However, the distribution of fat on your body is more important that the amount, when assessing your disease risk. For this reason, your waist circumference is thought to be a better predictor of health risk than your BMI.

Why BMI is inaccurate and misleading?

Body Mass Index’ biggest flaw is that it does not take into account the person’s body fat versus muscle (lean tissue) content. Muscle weighs more than fat (it is denser, a cubic inch of muscle weighs more than a cubic inch of fat). … A BMI calculation would class both of them as overweight.

Is a BMI of 17.5 bad?

The American Dietetic Association (ADA) defines the ideal body mass index (BMI) as between 20 and 25. Thus, anyone below that range would be considered underweight and those with a BMI from 18.5 to 17.5 extremely underweight.

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Why 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.

Who should not use BMI?

Furthermore, a low BMI (below 18.5) is also linked to poor health outcomes. That said, BMI fails to consider other aspects of health, such as age, sex, fat mass, muscle mass, race, genetics, and medical history.

Does BMI mean anything?

You’ve probably heard the term BMI (body mass index). It’s based on your height and weight, and it’s widely used to determine if you’re in a healthy weight range. But as it turns out, BMI may not be the best way to size up your shape.

How accurate is BMI if you are muscular?

A glob of muscle weighs about 18 percent more than the same size glob of fat. So, according to the BMI, the sprinter is more overweight than the sedentary person. But as I said earlier, a glob of muscle weighs about 18 percent more than the same size glob of fat, so this is clearly not an accurate statement.

At what BMI do anorexics get hospitalized?

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Admission criteria require that patients be less than 70 percent of their ideal body weight, or have a body mass index (BMI) below 15. In a woman who is 5 feet 4 inches tall, that’s about 85 pounds.

What BMI is most attractive?

These studies have found that a low waist to hip ratio (WHR) of approximately 0.7 [9] and a low Body Mass Index (BMI; weight scaled for height) of approximately 18–19 kg/m2 [10] are perceived as most attractive in female bodies, while a low waist to chest ratio (WCR) of approximately 0.7, and relatively high BMI ( …

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At what BMI do you get hospitalized?

for hospitalization:

BMI < 13 is an indicatior for certification under the Mental Health Act if the patient refuses admission although BMI < 13 alone is not enough for admission.

What is a fat skinny person?

The takeaway. “Skinny fat” is a term that refers to having a relatively high percentage of body fat and a low amount of muscle mass, despite having a “normal” BMI. People of this body composition may be at a heightened risk of developing diabetes and heart disease.

Why we should stop using BMI?

A new study shows that 54 million Americans whose BMI classes them as overweight and obese are in perfect health according to cardiometabolic measures, while 21 million whose BMI puts them in the normal category are unhealthy.

Does BMI actually matter?

As a single measure, BMI is clearly not a perfect measure of health. But it’s still a useful starting point for important conditions that become more likely when a person is overweight or obese.

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