Is BMI a good indicator for obesity?
Furthermore, studies have shown that BMI levels correlate with body fat and with future health risks. High BMI predicts future morbidity and death. Therefore, BMI is an appropriate measure for screening for obesity and its health risks.
What is the best measure of obesity?
The most basic method, and the most common, is the body mass index (BMI). Doctors can easily calculate BMI from the heights and weights they gather at each checkup; BMI tables and online calculators also make it easy for individuals to determine their own BMIs.
Why is BMI a poor measure of obesity?
BMI as a Determinant of Body Fat Mass
A particular problem with BMI as an index of obesity is that it does not differentiate between body lean mass and body fat mass; that is, a person can have a high BMI but still have a very low fat mass and vice versa.
Is a BMI of 25% good?
below 18.5 – you’re in the underweight range. between 18.5 and 24.9 – you’re in the healthy weight range. between 25 and 29.9 – you’re in the overweight range. between 30 and 39.9 – you’re in the obese range.
Is BMI a good test of health?
BMI is a useful indicator of health at the population level. However, the distribution of fat on your body is more important that the amount, when assessing your disease risk. For this reason, your waist circumference is thought to be a better predictor of health risk than your BMI.
Is BMI a useful metric?
Body mass index is the standard metric for determining who is normal-weight, overweight and obese, but BMI is not an accurate measure of fat, and doesn’t explain the causes of poor health, scientists argue in an editorial today (Aug. 22) in the journal Science.
Is BMI a flawed measurement?
Why BMI is flawed
The main flaw: It’s an indirect measure of body fat that doesn’t take into account important details about age, sex, bone structure, and fat distribution, one study in the International Journal of Obesity explained. Again, it’s just two numbers: weight divided by height squared.
Is BMI realistic?
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 of 30.0 or greater (“obese”) ( 4 , 5 ).
Is a BMI of 20 skinny?
What exactly counts as being “skinny?” Some healthcare experts believe a BMI in the 15-18 range to be clinically underweight. This seems to fall pretty close to what many everyday people consider to be “skinny” with a BMI of 18 or lower frequently listed as the indicator of someone considered to be slim.
Is BMI 28.6 obese?
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. Scores under 20 are considered underweight.