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the claim

People of East Asian descent have a genetic predisposition to alcohol flushing

the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 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 people of East Asian descent have a genetic predisposition to alcohol flushing?

Yes. Multiple genetic studies confirm that a significant portion of individuals of East Asian descent carry variants of the ALDH2 gene (such as rs671) that impair acetaldehyde metabolism and directly cause the alcohol flushing response.

Verdict: SUPPORTED · 3 sources for, 0 against · Last checked

The analysis

The retrieved literature consistently supports the claim that people of East Asian descent have a genetic predisposition to alcohol flushing, specifically detailing the high prevalence of the ALDH2 Glu504Lys (rs671) polymorphism and its role in causing facial flushing upon alcohol consumption. No papers refute this proposition.

Evidence for · 3
Glu504Lys Single Nucleotide Polymorphism of Aldehyde Dehydrogenase 2 Gene and the Risk of Human Diseases
2015
States that the Glu504Lys SNP of the ALDH2 gene is found in approximately 40% of East Asian populations and causes defective enzyme activity leading to the alcohol-induced flushing syndrome.
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Zhao, Y. & Wang, C. (2015). Glu504Lys Single Nucleotide Polymorphism of Aldehyde Dehydrogenase 2 Gene and the Risk of Human Diseases. doi.org. https://doi.org/10.1155/2015/174050

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More for · 2
Genetic influences on alcohol flushing in East Asian populations
2023
Confirms through a genome-wide association study meta-analysis in East Asian populations that ALDH2 and ADH1B variants are strongly associated with alcohol flushing.
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Cho, Y., Lee, S., Yu, C., Valle, D. S., Avery, D., Jung, K., Li, L., Smith, G. D., Chen, Z., Millwood, I., Hemani, G., & Walters, R. (2023). Genetic influences on alcohol flushing in East Asian populations. doi.org. https://doi.org/10.1186/s12864-023-09721-7

Uncovering newly identified aldehyde dehydrogenase 2 genetic variants that lead to acetaldehyde accumulation after an alcohol challenge
2024
Notes that an inactive genetic variant in ALDH2 (rs671) triggers an alcohol flushing response due to acetaldehyde accumulation in East Asian descendants.
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Rwere, F., White, J. R., Hell, R. C. R., Yu, X., Zeng, X., McNeil, L., Zhou, K. N., Angst, M., Chen, C., Mochly-Rosen, D., & Gross, E. R. (2024). Uncovering newly identified aldehyde dehydrogenase 2 genetic variants that lead to acetaldehyde accumulation after an alcohol challenge. doi.org. https://doi.org/10.1186/s12967-024-05507-x

What does the evidence say?

The retrieved literature consistently supports the claim that people of East Asian descent have a genetic predisposition to alcohol flushing, specifically detailing the high prevalence of the ALDH2 Glu504Lys (rs671) polymorphism and its role in causing facial flushing upon alcohol consumption. No papers refute this proposition.

Receipt History
first checked06 Aug 2026
judged → SUPPORTED · 8506 Aug 2026
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