People with non-alcoholic fatty liver disease who consume more niacin through their diet have a lower risk of death from any cause.
See the scientific wording
Higher dietary niacin intake is associated with lower all-cause mortality in individuals with non-alcoholic fatty liver disease.
Correlational — new studies may shift this
Observational2 moderate-quality studies link this claim to the outcome, but causation is not established.
What the research says
2 studies reviewedSupporting (2)
Dietary Niacin Intake and Mortality Among Individuals With Nonalcoholic Fatty Liver Disease
Cohort StudyHuman2024
This study found that people with fatty liver disease who ate more niacin (about 27 mg per day) had a 30% lower chance of dying from any cause compared to those who ate less (about 18 mg per day), supporting the idea that niacin might be beneficial.
Niacin for treatment of nonalcoholic fatty liver disease (NAFLD): novel use for an old drug?
Narrative ReviewReview2019
This study shows that niacin can improve fatty liver disease in animals and a small group of people, which might help people with fatty liver live longer, but it doesn't directly prove that it lowers death rates.
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 & 2 supporting studies
How Fit Body Science checks a claim
- 1
We isolate the claim
Health advice from videos, articles and studies is broken down into single, testable claims.
- 2
We find the research
Each claim is matched against peer-reviewed studies, with every source cited by DOI.
- 3
We grade the evidence
Studies are scored on methodology, statistical rigor, transparency and publication quality.
The fitness and health internet is full of confident claims. We check them against real research.
Every claim on this site is traced back to peer-reviewed studies, scored on methodology and reporting quality, and given a verdict you can audit yourself — sources, DOIs and all.
- Full evidence breakdown and mechanism chains
- Ask our AI anything about a claim or its studies
- Get notified when new research changes a verdict