Alcohol consumption weakens immune function in humans.

the verdict

INSUFFICIENT LEANING

Recorded sources

6 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that alcohol consumption weakens immune function in humans?

Unclear. Several reviews indicate that alcohol consumption is associated with immune dysregulation and higher infectious-disease burden, but the evidence is indirect or limited to specific populations and conditions, and one review notes moderate consumption may even stimulate immunity. No retrieved item directly establishes that alcohol weakens immune function in humans generally.

Verdict: PARTIAL LEAN · 6 sources for, 0 against · Last checked 3 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 6

Alcohol consumption and cancer progression: Mechanistic insights, immune dysregulation, and public health implications.

2026

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RP, D., A, T., & K, W. (2026). Alcohol consumption and cancer progression: Mechanistic insights, immune dysregulation, and public health implications.. doi.org. https://doi.org/10.1016/j.tranon.2026.102793

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More for · 5

Moderate alcohol consumption and the immune system: A review | British Journal of Nutrition | Cambridge Core Logo for Cambridge Core from Cambridge University Press. Click to return to homepage. Logo for Cambridge Core from Cambridge University Press. Click to return to homepage.

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Moderate alcohol consumption and the immune system: A review | British Journal of Nutrition | Cambridge Core Logo for Cambridge Core from Cambridge University Press. Click to return to homepage. Logo for Cambridge Core from Cambridge University Press. Click to return to homepage.. (n.d.). cambridge.org. https://www.cambridge.org/core/journals/british-journal-of-nutrition/article/moderate-alcohol-consumption-and-the-immune-system-a-review/D340A16DDC772F6F2625001BD4AD430B

A review of the relationship between dimensions of alcohol consumption and the burden of disease: 2026 update including Mendelian randomisation studies.

2026

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S, C., AL, E. D., Sr, G. G., AS, H., KD, S., & J, R. (2026). A review of the relationship between dimensions of alcohol consumption and the burden of disease: 2026 update including Mendelian randomisation studies.. doi.org. https://doi.org/10.1111/add.70435

Impact of alcohol consumption, substance use, and smoking on treatment outcomes in tuberculosis: a systematic review and meta-analysis.

2025

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B, H., S, O., & Y, M. (2025). Impact of alcohol consumption, substance use, and smoking on treatment outcomes in tuberculosis: a systematic review and meta-analysis.. doi.org. https://doi.org/10.1186/s13643-025-02888-y

The Impact of Alcohol on the Gut Microbiota: A literature review

2025

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The Impact of Alcohol on the Gut Microbiota: A literature review. (2025). doi.org. https://doi.org/10.12775/jehs.2025.80.60045

Opposing Effects of Alcohol on the Immune System -

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Opposing Effects of Alcohol on the Immune System - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1016/j.pnpbp.2015.09.001

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