Wine, alcohol, and depression
In PREDIMED adults, low-to-moderate alcohol—especially wine—associated with lower incident depression risk versus abstaining, while heavy drinking looked riskier.
Source
Alcohol intake, wine consumption and the development of depression: the PREDIMED study
What they did
Among 5,505 older Mediterranean adults, investigators related baseline alcohol/wine intake to 443 incident depression cases over follow-up using Cox models.
What they found
Low-to-moderate intake (>5–15 g/day) had HR 0.72 (95% CI 0.53–0.98); wine dominated alcohol intake (82% of variability); heavy drinkers appeared at higher risk.
The limits
What it doesn't show
Observational design cannot prove alcohol prevents depression; confounding and residual healthy-user effects remain.
Key terms
- PREDIMED
- Mediterranean diet trial cohort used for this depression analysis.
- Incident depression
- New depression cases during follow-up.
- Low-to-moderate intake
- About >5 to 15 g alcohol per day in this analysis.
- Hazard ratio
- Relative instantaneous risk versus the reference intake group.
- Abstainers
- Reference group reporting no alcohol intake.
- Wine-predominant intake
- Wine explained most alcohol variability in this sample.
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Design?
Common questions
Sample size?
5,505 participants.
Incident cases?
443 depression cases.
Key HR?
0.72 for >5–15 g/day vs abstainers.
Beverage pattern?
Wine accounted for 82% of alcohol intake variability.
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