The Claim

Shift work is associated with a 1.2- to 1.3-fold increased risk of metabolic dysfunction-associated steatotic liver disease (MASLD) in adults, with stronger associations observed among those exposed to frequent or long-term night shifts, suggesting circadian disruption may contribute to liver fat accumulation.

Source: Shift work and metabolic dysfunction-associated steatotic liver disease: a systematic review of observational studies

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
52score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

People who work nights or irregular shifts are more likely to develop a fatty liver condition, especially if they do it for a long time or often — this might be because their body’s internal clock gets messed up.

See the scientific wording

Shift work is associated with a 1.2- to 1.3-fold increased risk of metabolic dysfunction-associated steatotic liver disease (MASLD) in adults, with stronger associations observed among those exposed to frequent or long-term night shifts, suggesting circadian disruption may contribute to liver fat accumulation.

What the research says

1 study
  1. Study: Shift work and metabolic dysfunction-associated steatotic liver disease: a systematic review of observational studies

    This study looked at people who work nights or irregular shifts and found they’re more likely to have fat in their liver, especially if they’ve done it for a long time—just like the claim says.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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