Why do doctors still use BMI?

Health professionals have been using body mass index, or BMI, to help decide whether people are overweight or underweight for more than 100 years. Researchers in population studies, doctors, personal trainers, and others use the BMI in their work.

Why do doctors continue to use BMI?

The body mass index (BMI) has long been used as a way to judge one’s health. It’s a simple measure — your weight in kilograms divided by your height in meters squared — that can supposedly tell you how likely you are to develop heart disease, diabetes, and even early death.

Why is the BMI measurement still used widely today?

Body Mass Index Is a Good Gauge of Body Fat

The most basic definition of overweight and obesity is having too much body fat-so much so that it “presents a risk to health.” (1) A reliable way to determine whether a person has too much body fat is to calculate the ratio of their weight to their height squared.

Is the BMI scale outdated?

Though it has been used for decades as the go-to measurement for health based on body size, it has been widely criticized for its oversimplification of what being healthy really means. In fact, many claim BMI is outdated and inaccurate and shouldn’t be used in medical and fitness settings.

THIS IS INTERESTING:  Question: How does breastfeeding prevent childhood obesity?

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).

Why does the NHS use BMI?

But doctors use BMI in conjunction with other measures – like blood pressure, cholesterol and family history – to work out an individual’s risk of type 2 diabetes or heart disease, for example. Body mass index is not specific to any particular health risk – and that’s its strength, experts say.

Is the BMI accurate?

Even though it is often used as one, it is not a true diagnostic of body fatness or of an individual’s overall health. As most of us fitness-focused folks have likely heard, BMI is far from a perfect measurement.

Is BMI flawed for tall people?

Would it make a difference? Yes indeed. Roughly speaking, each person 6 feet tall would lose a point from their BMI reading, and each person 5 feet tall would gain a point.

Why does my BMI say I’m overweight when I’m not?

BMI doesn’t account for body composition, which means it misses the difference between muscle mass and fat. or overweight based on their BMI alone. Someone who has a high BMI due to muscle mass most likely doesn’t need to worry about the health problems associated with obesity and being overweight.

What is more accurate than BMI?

Waist-to-height ratio (WHtR)

WHtR is more accurate than BMI because it takes central fat into consideration. Central fat is important because it collects around the organs in your midsection and has been closely linked to conditions such as heart disease.

THIS IS INTERESTING:  Your question: What causes adipose tissue?

Is a BMI of 29 OK?

Body Mass Index (BMI)

BMI scores of 20 to 24.9 are considered normal, scores of 25 to 29.9 are overweight, scores of 30 to 34.9 are obese, and scores above 35 are extremely obese.

What are the limitations of using BMI?

Factors such as age, sex, ethnicity, and muscle mass can influence the relationship between BMI and body fat. Also, BMI does not distinguish between excess fat, muscle, or bone mass, nor does it provide any indication of the distribution of fat among individuals.

What are the disadvantages of BMI?

The Drawbacks of Using BMI

  • How Much Muscle You Have: The more you have, the higher your BMI will be, even though you may be healthy.
  • Frame Size: A person with a big frame will have a higher BMI, although they may still be healthy.
  • Gender: At the same BMI, women will usually have more body fat than men.