More people are being diagnosed with NAFLD, a liver condition linked to obesity and diabetes, compared to previous years.
See the scientific wording
The prevalence of non-alcoholic fatty liver disease (NAFLD) is increasing over time.
Correlational — new studies may shift this
Observational3 moderate-quality studies link this claim to the outcome, but causation is not established.
What the research says
3 studies reviewedSupporting (3)
Systematic Review With Meta-AnalysisMeta-analysis2024
This study looked at how many kids have NAFLD over many years and said the number is going up, which matches the claim that more people are getting NAFLD over time.
Cross-Sectional StudyHuman2026
This study looked at how many people have NAFLD over the years and found that both new cases and total cases have gone up a lot from 1990 to 2021, and they expect it to keep rising.
The prevalence and incidence of NAFLD worldwide: a systematic review and meta-analysis.
Narrative ReviewReview
This study looked at many past studies and found that the percentage of adults with fatty liver disease has gone up from about 25% before 2005 to nearly 38% after 2016, so it supports the claim that NAFLD is becoming more common.
Contradicting (0)
No contradicting studies found yet
That doesn't mean it's settled — it just means no study has tested the opposite.
Quality-weighted scoring: we follow the GRADE framework — each study is rated High, Moderate, Low, or Very Low based on study design, methodology rigor, and risk of bias. A single high-quality RCT can outweigh several weaker observational studies.
Scores reflect study quality, not just count.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 3 supporting studies
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