A hangover (or hangover syndrome) is a multifactorial syndrome that occurs after excessive alcohol consumption. Its mechanisms are well understood: dehydration and electrolyte depletion (alcohol is a powerful diuretic that inhibits the antidiuretic hormone), the accumulation of acetaldehyde (a toxic metabolite of alcohol produced by the liver, responsible for nausea and headaches), blood glucose imbalance (reactive hypoglycemia due to depletion of hepatic glycogen stores), and systemic inflammation (activation of pro-inflammatory cytokines by alcohol). The classic symptoms—throbbing headaches, nausea, photosensitivity, fatigue, intense thirst, and dizziness—are at their worst when blood alcohol levels drop to zero, usually 6 to 12 hours after the last drink. Liver support and recovery supplements are available in the store’s detox and dietary supplement line.
Important warning: The combination of alcohol and acetaminophen is hepatotoxic—never exceed 1 g of acetaminophen in a person who drinks alcohol, even occasionally. NSAIDs (aspirin, ibuprofen) irritate the stomach lining, which is already weakened by alcohol. If you regularly engage in risky alcohol consumption, consult a doctor.
Effective prevention relies on four main strategies.Hydration is the first: drinking a large glass of water between each alcoholic drink, and 500 mL of water before bed, partially counteracts the diuretic effect and reduces the severity of symptoms the next day.Eating before drinking slows the absorption of alcohol in the stomach—a balanced meal including protein, fat, and complex carbohydrates is much more effective thandrinking on an empty stomach. Moderation remains the only sure way to prevent hangovers: the body eliminates about 10 mL of pure ethanol per hour, regardless of weight or gender. Finally, choosing alcoholic beverages low in congeners (such as vodka or distilled gin) over tannin-rich red wines or dark spirits modestly reduces the risk.
In terms of micronutrients, alcohol depletes reserves of vitamin B1 (thiamine), magnesium, and vitamin C —taking these nutrients preventively before a night out can lessen the severity of the next day’s symptoms.
The next morning, several complementary approaches can help speed up recovery:
Rest and sleep remain the best allies for recovery—the body eliminates alcohol and its metabolites at a fixed rate that nothing can speed up. Contrary to popular belief, coffee does not “sober you up” and actually worsens dehydration due to its additional diuretic effect.
