Beyond BMI : Reassessing the Prevalence of Obesity in Patients With MASLD Under the Lancet Commission Diagnostic Criteria
Authors' conclusion
Among adults aged 18-59 years with MASLD, the new obesity criteria increased the estimated prevalence of obesity to 98.3%. Moreover, 94.9% of individuals considered non-obese by traditional BMI criteria and 84.2% of those with BMI-defined lean MASLD met the new obesity criteria.
Study context
- Population
- Adults aged 18–59 years with MASLD, NHANES 2017–2018, including BMI-defined lean-MASLD
- Exposure
- Lancet Commission obesity criteria vs traditional BMI-based criteria
- Outcome
- Obesity prevalence and reclassification under the Lancet Commission criteria
Methodological detailsNHANES 2017-2018
- NHANES 2017-2018
Main finding
As reported in the abstract
Estimated prevalence of obesity in MASLD
- Non-obese by traditional criteria reclassified as obese under new criteria
- 94.9%
Observational data: associations, not effects.
Further findings
BMI-defined lean-MASLD meeting new obesity criteria
- Lean-MASLD meeting new obesity criteria
- 84.2%
Original publication
Beyond BMI : Reassessing the Prevalence of Obesity in Patients With MASLD Under the Lancet Commission Diagnostic Criteria. Diabetes Obes Metab. Published 11 May 2026. doi:10.
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