New Study Suggests BMI May Not Fully Predict Health Risk
For adults 55 and older, different weight-related metrics may better identify risks for specific diseases.
Updated on Oct. 21, 2026 in Weight Loss
Live Poll
Should clinicians use multiple body metrics rather than relying solely on BMI for health assessments?
A large study suggests that the most effective obesity metric for predicting health risks varies depending on the specific disease being evaluated. Researchers found that different measurements, such as BMI or waist circumference, offer unique insights into long-term health outcomes for older adults.
Why it matters
Standard BMI calculations often fail to capture visceral fat, a major factor in heart health, which can lead to incomplete risk assessments. Identifying the right measurement tool helps clinicians more accurately screen for specific conditions like cardiovascular disease or mortality risk.
This longitudinal cohort study followed 1.2 million adults aged 55 and older for up to 10 years to compare obesity metrics. The findings show significant differences in disease associations, though the direct impact on patient management remains to be determined.
The players
Seoul National University Bundang Hospital
A major medical institution in South Korea that conducted the research on obesity metrics.
The details
Researchers analyzed BMI, waist circumference, and A Body Shape Index (ABSI) against risks for atherosclerotic cardiovascular disease, atrial fibrillation, and all-cause mortality. While BMI accounts for total body mass, it can be a misleading indicator in older adults because it does not differentiate between muscle mass and fat, and may reflect frailty-related weight loss. ABSI better highlights visceral fat, which is more metabolically active and dangerous for heart health than subcutaneous fat.
Timeline
October 21, 2026: Research findings published in the journal PLOS One.
Health Landscape
For decades, medical professionals have primarily used BMI as the clinical standard to assess health risks related to weight. This study suggests a shift toward more specialized metrics, recognizing that total body mass may obscure specific cardiovascular or metabolic vulnerabilities in aging adults.
If you are concerned about your cardiovascular health, it may be worth asking your doctor if a waist circumference or A Body Shape Index measurement is appropriate in addition to your standard BMI. These metrics can help your physician better assess your unique risk profile as you age.
The takeaway
Different obesity metrics reveal different health risks, with BMI often failing to fully capture cardiovascular vulnerabilities in older adults. Talk to your primary care provider about which measurements are most relevant for assessing your specific health history and long-term goals.
Further reading
For more on managing health through evidence-based screening, visit our Weight Loss section.
Source note: This article includes information reported by 경향신문.
Live Poll
Should clinicians use multiple body metrics rather than relying solely on BMI for health assessments?
