CausesBy Mayo Clinic staff
Alcohol intolerance occurs when your body doesn't have the proper enzymes to break down (metabolize) the toxins in alcohol. This is caused by inherited (genetic) traits.
Intolerance reactions can also be caused by a number of other ingredients commonly found in alcoholic beverages, especially in beer or wine. These include:
- Sulfites or other preservatives
- Chemicals, grains or other ingredients
- Histamine, a byproduct of fermentation or brewing
In some cases, reactions can be triggered by an allergy to a grain such as corn, wheat or rye or to another substance contained in alcoholic beverages.
Rarely, severe pain after drinking alcohol is a sign of a more serious underlying disorder, such as Hodgkin lymphoma.
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