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Analysis v1
Supported

Measuring your waist is more accurate than your weight for predicting if you'll get sick or die early.

66
Pro
42
Against

Evidence from Studies

Supporting (2)

66

Community contributions welcome

66

Weight-adjusted waist index outperforms other obesity indices for cardiovascular disease prediction in cardiovascular-kidney-metabolic syndrome: insights from UK biobank

Cohort Study
Human
2025 Dec 7

This study found that measuring waist size is better than using BMI to predict heart disease risk in adults, which means waist circumference is a more accurate warning sign for health problems than BMI.

42

The prediction of Metabolic Syndrome alterations is improved by combining waist circumference and handgrip strength measurements compared to either alone

Cross-Sectional Study
Human
2021 Mar 22

This study found that measuring waist size is a better way to predict metabolic problems than using body mass index (BMI), even though both are related to body fat. The bigger your waist, the higher your risk — more than what BMI shows.

Contradicting (2)

42

Community contributions welcome

42

Ultrasound measurements of intraabdominal fat estimate the metabolic syndrome better than do measurements of waist circumference

Cross-Sectional Study
Human
2003 Apr

The study found that using an ultrasound to measure fat inside the belly is better at predicting health risks than just measuring waist size — meaning waist size isn’t as good as the claim says it is.

34

Is Waist to Height Ratio Better than Other Indices of Obesity in Determining Cardiovascular Risk?

Cross-Sectional Study
Human

The study checked if measuring waist size is better than BMI at predicting health risks, and found they’re about equally good — so it doesn’t support the idea that waist size is better.

Similar Assertions

Increased waist circumference is associated with a higher risk of metabolic disease and mortality, independent of total body weight.

48
59
86%

Having a larger waist circumference is the main indicator of metabolic syndrome risk in adults from middle-income countries.

42
0
82%

Measuring your waist compared to your height isn’t any better than just using your BMI or waist size to guess your heart risk—all three are about equally useful in this group.

34
0
79%

People with bigger waistlines are much more likely to have multiple health problems like high blood sugar, bad cholesterol, and high blood pressure.

42
0
79%

People with bigger waists are more likely to die sooner, even if their overall weight seems normal—this means where you carry fat matters more than how much you weigh.

66
0
78%