BMI is not an accurate predictor of health because it does not account for body fat percentage or body fat distribution. In addition, BMI cannot accurately predict the health of different demographics and races because it was created with data from only white Europeans.
Why is BMI not a good health indicator?
BMI provides an estimate of a person’s overall disease risk, and is used around the world to measure obesity. But BMI has come under criticism because it can be inaccurate in estimating body fat and doesn’t provide a full picture of a person’s health.
Why is BMI not always a good measure of fitness?
“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.
Why is BMI sometimes not a good indicator of health for adults?
BMI is a simple indicator of weight for height and can’t differentiate between muscle mass and fat mass. So BMI tends to overestimate the health risk for adults with a high muscle mass, such as some athletes, and underestimate the risk for adults with a low muscle mass, as can occur with sedentary lifestyles.
Is BMI a reliable indicator?
Body mass index (BMI) is perhaps a more reliable indicator of your overall health instead of counting on a body fat scale alone. While BMI can’t measure fat, it does provide an overall picture of whether you’re in the right weight range for your height and age.
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.
Is WHR a better indicator than BMI?
The study, published Wednesday in the Journal of the American Heart Association, suggests that a waist-to-hip ratio measurement may be a better indicator of heart attack risk than body mass index for both men and women.
Is BMI accurate 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.
Does BMI count muscle?
BMI (body mass index), which is based on the height and weight of a person, is an inaccurate measure of body fat content and does not take into account muscle mass, bone density, overall body composition, and racial and sex differences, say researchers from the Perelman School of Medicine, University of Pennsylvania.
What can I use instead of BMI?
Better than BMI: 4 ways to track your health besides the scale
- Waist-to-height ratio (WHtR) The cousin of the BMI, waist-to-height ratio compares — you guessed it — waist circumference to height, rather than overall weight to height squared. …
- Measurements. …
- Resting heart rate (RHR) …
- Skinfold Calipers.
What is my ideal weight for my height and age?
Weight and height guide chart
|5ft 1″ (61″)||100 to 127 lbs.||132 to 153 lbs.|
|5ft 2″ (62″)||104 to 131 lbs.||136 to 158 lbs.|
|5ft 3″ (63″)||107 to 135 lbs.||141 to 163 lbs.|
|5ft 4″ (64″)||110 to 140 lbs.||145 to 169 lbs.|
What is the best BMI for a woman?
Doctors consider a healthy BMI for women to be 18.5–24.9. A BMI of 30 or above may indicate obesity. BMI measurements can help someone understand whether they have underweight or overweight.
What is the best indicator of healthy weight?
If your BMI is less than 18.5, it falls within the underweight range. If your BMI is 18.5 to 24.9, it falls within the normal or Healthy Weight range. If your BMI is 25.0 to 29.9, it falls within the overweight range. If your BMI is 30.0 or higher, it falls within the obese range.
What does the BMI tell you?
BMI is a way to figure out your approximate level of body fat in an easy, inexpensive way. It’s a number based on your weight and height that can help you tell if you are at a healthy weight for your height. In general, the higher the number, the more body fat a person has.
What should your BMI be?
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. If your BMI is: below 18.5 – you’re in the underweight range.
What weight do I need to be to have a BMI of 25?
A man who is 5 ft. 10 in. tall is considered overweight (BMI is 25 to 29) if he weighs between about 174 and 202 pounds, and is obese (BMI is 30 or more) if he is closer to 209 pounds or more.