Durian and alcohol: folklore, lab results and what is unknown
The old warning has some laboratory support, but the sources we read do not show that the mix is deadly.
A familiar warning says durian should never be eaten with alcohol, and some people claim the mix can kill. The warning surfaced again in August 2026, when a business news site of South Korea's Herald group reported Thai fans raising it in online comments. The article treated these as fan claims and looked at the research.
The research is real, if limited. According to that report, a University of Tsukuba horticulture team published a study in Food Chemistry in 2009 showing that durian extract inhibits aldehyde dehydrogenase, or ALDH, the liver enzyme that breaks down acetaldehyde, a toxic by-product of alcohol. In 2011, the same team gave rats durian with ethanol. Those animals cleared acetaldehyde more slowly and their body temperature fell.
A 2018 paper in the journal Molecules by Lu and colleagues gives further context. It says eating durian with alcohol has been reported to cause palpitations and vomiting, symptoms that resemble those of disulfiram, a sulphur-containing drug used in alcohol aversion therapy. It adds that volatile sulphur compounds from natural sources have been shown to inhibit ALDH, which makes durian's sulphur chemistry a plausible suspect.
The gap lies between those findings and the folklore. The Herald quotes researchers as saying a scientific basis for a fatal outcome has not been established, and we did not find a controlled human trial in the sources we opened. A reasonable reading is that an unpleasant reaction has a plausible mechanism, while the claim of certain death is unproven. This is not medical advice; people with health concerns should ask a doctor.
Sources
- Summary of the 2009 Tsukuba study and 2011 rat study; statement on fatal outcomes (published 16 Aug 2026)
- Lu et al., Molecules 2018: reported adverse effects, disulfiram comparison, sulphur compounds and ALDH