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Updated: Dec 19, 2025

Chronic Intermittent Ethanol Vapor Exposure Paired with Two-Bottle Choice to Model Alcohol Use Disorder
Published on: June 23, 2023
Alcohol use disorder and the gut
Paul S Haber1,2, Nicholas C Kortt1
1Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia.
Excessive alcohol consumption causes significant gastrointestinal issues, including cancer and non-life-threatening problems like diarrhea. Moderate drinking also increases gastrointestinal injury and cancer risk.
Area of Science:
- Gastroenterology
- Toxicology
Background:
- Excessive alcohol use is a primary cause of gastrointestinal morbidity and mortality.
- Alcohol-related gastrointestinal injury and increased cancer risk are evident even with moderate consumption.
- Key alcohol-related gastrointestinal issues include liver disease, pancreatitis, and cancer.
Purpose of the Study:
- To review non-neoplastic and neoplastic alcohol-related gastrointestinal disorders.
- To highlight the impact of alcohol on the entire gastrointestinal tract, excluding the liver.
Main Methods:
- Literature review of alcohol-related gastrointestinal disorders.
- Focus on non-neoplastic and neoplastic conditions.
- Exclusion of liver-specific pathology.
Main Results:
- Alcohol consumption leads to acute and chronic gastrointestinal problems.
- Both excessive and moderate alcohol intake are linked to gastrointestinal injury and elevated cancer risk.
- Common non-life-threatening issues include diarrhea, malabsorption, and nutritional deficiencies.
Conclusions:
- Alcohol significantly impacts gastrointestinal health, causing a range of disorders.
- Gastrointestinal cancers and severe conditions like pancreatitis are major alcohol-related health concerns.
- Understanding these effects is crucial for public health and clinical practice.
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