It is used in population studies, by doctors, personal trainers, and others. However, BMI has some important flaws. For example, it does not measure overall fat or lean tissue (muscle) content. BMI is derived from a simple math formula.
Is the BMI scale outdated?
Though it has been used for decades as the go-to measurement for your health based on your size, it has been widely criticized for its oversimplification of what being healthy really means. In fact, many claim BMI is outdated, inaccurate, and shouldn’t be used in medical and fitness settings.
Should BMI still be used?
BMI is a reasonable indicator of body fat for both adults and children. Because BMI does not measure body fat directly, it should not be used as a diagnostic tool. Instead, BMI should be used as a measure to track weight status in populations and as a screening tool to identify potential weight problems in individuals.
Why do doctors use BMI if it’s inaccurate?
BMI does not measure body fat percentage
One of the main issues with BMI is that it cannot account for the difference between muscle and fat. Because muscle tissue is more dense than fat, many athletes and bodybuilders are considered overweight according to BMI despite being in peak athletic health.
Do doctors care about BMI?
Do doctors take obese patients’ complaints less seriously? A study in a recent issue of the Journal of General Internal Medicine indicates that — at least in their early years of medical school — young doctors indeed take an obese patient’s complaints seriously and provide good treatment.
What weight do I need to be to have a BMI of 25?
4 in. tall is considered overweight (BMI is 25 to 29) if she weighs between about 145 and 169 pounds. She is considered obese (BMI is 30 or more) if she is closer to 174 pounds or more.
What is the healthiest BMI for a woman?
A BMI of 18.5–24.9 is considered normal or healthy for most women.
What are the disadvantages of BMI?
Since muscle weighs more than fat, BMI isn’t accurate in patients with extreme amounts of muscle. And this can cause unnecessary concern or a faulty sense of security for many adults. For example, a fit person with dense muscle could be categorized as overweight based on BMI.
Can you trust BMI?
Body mass index is not specific to any particular health risk – and that’s its strength, experts say. However, a BMI above the healthy range or too much fat around the waist is known to increase the risk of serious health problems, including stroke and certain cancers.
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.
Why do doctors still use the 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.
What is more accurate than BMI?
Waist-to-height ratio more accurate than BMI in identifying obesity, new study shows. Summary: Calculating a person’s waist-to-height ratio is the most accurate and efficient way of identifying whether or not they are at risk of obesity in clinical practice, a new study shows.
Is body fat percentage more accurate than BMI?
Body fat percentage distinguishes fat from muscle and calculates the percentage of body fat in the body. While BMI is a rough estimate of body fat, body fat percentage is a more accurate number.
Why should we stop using BMI?
BMI, as a single measure, would not be expected to identify cardiovascular health or illness; the same is true for cholesterol, blood sugar, or blood pressure as a single measure. And while cardiovascular health is important, it’s not the only measure of health!
What is BMI at the doctor’s office?
The most common screening tool is the body mass index (BMI). The BMI is a number calculated from a person’s weight and height. In most people, BMI relates with body fat. It is not accurate in some cases.
Do doctors need your weight?
Sometimes, knowing your weight is important information your doctor needs to inform a treatment decision (like certain medication dosages). In these cases, your doctor may insist on weighing you.