Why BMI Isn’t a Perfect Measure to Identify Overweight and Obese People. Despite its wide use, BMI is flawed. Increasingly, the scale has come under scrutiny as more and more people are being placed in its high-risk categories of overweight or obese.
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 the BMI is wrong?
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.
How accurate is the BMI?
Despite concerns that BMI doesn’t accurately identify whether a person is healthy, most studies show that a person’s risk of chronic disease and premature death does increase with a BMI lower than 18.5 (“underweight”) or above 30.0 (“obese”) ( 4 , 5 ).
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?
A person is considered underweight if the BMI is less than 18.5. As with most measures of health, BMI is not a perfect test. For example, results can be thrown off by pregnancy or high muscle mass, and it may not be a good measure of health for children or the elderly.
Does breast size affect BMI?
BMI is genetically correlated with breast size.
How can I lower my BMI fast?
Eat More Fruits, Vegetables, Whole Grains, and Low- or No-Fat Dairy Products Every Day
- Aim for at least five servings of fruits and vegetables a day. …
- Try and choose whole grain cereal, pasta, rice, and bread. …
- Avoid food that is high in sugar, like pastries, sweetened cereal, and soda or fruit-flavored drinks.
What is better than BMI?
Relative fat mass is a better measure of body fatness than many indices currently used in medicine and science, including the BMI.”
What is a good BMI score?
If your BMI is: Under 18.5 – you are very underweight and possibly malnourished. 18.5 to 24.9 – you have a healthy weight range for young and middle-aged adults. 25.0 to 29.9 – you are overweight.
Is a BMI of 26.2 good?
Someone with a BMI of 26 to 27 is about 20 percent overweight, which is generally believed to carry moderate health risks. A BMI of 30 and higher is considered obese. The higher the BMI, the greater the risk of developing additional health problems. A healthy weight is considered to be a BMI of 24 or less.
What is a healthy waist size for my height?
You are healthy! Ashwell has proposed that governments adopt a simple public health message: “Keep your waist to less than half your height.” That means someone who is 5 foot 5 (65 inches; 167.64 centimeters) should maintain a waistline smaller than 33 inches or 84 centimeters.
Does BMI Work If You muscular?
Since there is no adjustment factor for BMI relative to muscle mass and body frame, many experts recommend also measuring waist circumference and often consider other weight-related risk factors including high cholesterol, high blood sugar, family history, smoking and inactivity when assessing risk of obesity-related …
Why are doctors still using BMI?
The sensitivity of doctors to these slight inconveniences signals just how difficult it will be to unseat Quetelet’s equation. The body mass index is cheap and easy, and it has the incumbent advantage. In short, BMI is here to stay—despite, but also because of, its flaws.
Which diseases are associated with a BMI over 25?
If you are overweight (with a BMI over 25kg/m2) and physically inactive, you may develop:
- cardiovascular (heart and blood circulation) disease.
- gallbladder disease.
- high blood pressure (hypertension)
- type 2 diabetes.
- certain types of cancer, such as colon and breast cancer.