Is it a good indicator of health? 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 ).
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 BMI index accurate?
As most of us fitness-focused folks have likely heard, BMI is far from a perfect measurement. Much of the time, and often when it really counts, the BMI measurement may actually overestimate or even underestimate a person’s body fat. And when it does, it really does.
Is BMI the most accurate measure of a person’s health status?
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.
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.
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.
Do doctors still use BMI?
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.
What is a good BMI score?
For most adults, an ideal BMI is in the 18.5 to 24.9 range. For children and young people aged 2 to 18, the BMI calculation takes into account age and gender as well as height and weight.
Why is BMI not accurate for athletes?
“Because it’s simple,” Ahima said, adding that it’s easy to weigh people and measure their height. For most people, BMI provides a “reasonable measure” of body fat, but is not accurate for athletes (who weigh more because of muscle) or older people who have lost height, he said.
What is better than BMI?
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.
Why weight is not a good health indicator?
Myth #3: Fatter bodies are inherently less healthy, and have a higher risk of disease and mortality. There is no evidence to support that body weight alone is a risk factor for disease or higher mortality. … However, there is no evidence to suggest that excess weight causes disease.
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.
Why is BMI not accurate for elderly?
You can’t tell between fat, muscle or fluid mass so using BMI may not be accurate. For the elderly, muscle mass is much lower in comparison to fat mass, and many have medical conditions that can increase fluid mass as well.
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.
Is BMI accurate 2021?
Is the BMI an accurate measure of health? The short answer, not in and of itself. Here’s what the BMI is: “Your BMI is calculated by dividing your weight by your height squared to give you a number of kilograms per meter squared,” says Dr. Lee.