Electrolyte Drinks for Hangovers: Do They Work?

Probably not. NIAAA states that research has not found a link between how disturbed your electrolytes are and how bad a hangover is, or any effect of added electrolytes on hangover severity¹. A 2024 review concluded that hangover and dehydration are two co-occurring but independent effects of drinking².

An electrolyte drink is a reasonable way to rehydrate and is safe for most healthy adults, but people with kidney disease or heart failure should check first, for the reasons below. Our electrolytes page covers what electrolytes do and how they are dosed.

A placebo-controlled trial of a drink containing electrolytes found no benefit, and the biology does not point to one.

• 2020 placebo-controlled trial: 214 adults drank one of three drinks 45 minutes before and again right after an evening of drinking. A mineral-and-vitamin drink with magnesium, potassium, sodium bicarbonate and zinc did not improve hangover symptoms or thirst compared with a glucose drink³. A version that also contained plant extracts eased headache and nausea, which the authors attributed to the extracts³.
• 1974 volunteer study: 19 healthy volunteers drank 1.5 g/kg of ethanol after a 10-hour fast. Plasma sodium, potassium, chloride, calcium and magnesium showed no significant change across 20 hours⁴.
• What did track with symptoms: a metabolic acidosis (blood turning more acidic) at the time of the worst hangover, and its degree correlated with hangover intensity⁴.
• 2010 review: electrolytes, vasopressin (the hormone that holds back urine) and other markers of dehydration were not significantly related to hangover severity. Immune factors were the most convincing correlate⁵.
• NIAAA: in most people the body quickly restores electrolyte balance once alcohol wears off¹.

A narrative review published in 2000 listed rehydration among helpful interventions, but it described dehydration as one suspected cause among several⁶. Later studies of water and of mineral drinks have not backed it up^{2, 3}.

Alcohol makes you urinate more, but the fluid loss is mild and the electrolyte shifts are small.

Alcohol suppresses vasopressin, so the kidneys release more water. NIAAA says the resulting mild dehydration likely contributes to thirst, fatigue and headache¹.

The effect depends on how strong the drink is. In a trial of exercise-dehydrated men, drinks with up to 2% alcohol rehydrated as well as alcohol-free drinks. A 4% drink delayed recovery of blood volume⁷. In 123 adults, higher alcohol intake went with higher blood osmolality (a marker of concentrated blood) in men but not in women⁸.

Your pre-drinking state matters too. In 16 men dehydrated by 2.5% of body mass through exercise, alcohol impaired reaction time and executive function more than when the same men were fully rehydrated⁹. That trial measured cognition on the night, not next-day hangover.

No hangover trial has compared an electrolyte drink with plain water. The closest evidence suggests neither does much for the hangover itself:

• Water during drinking: in a randomized crossover trial, 13 men drank sake with or without 15 mL/kg of water. Breath ethanol, acetaldehyde, a psychomotor test and next-day symptom scores did not differ¹⁰.
• Water as a cure: the 2024 review found that more water drunk during a hangover was not linked to any change in severity or thirst². Water drunk during or right after drinking had only a modest effect on next-day hangover².
• Minerals added to a drink: in the 2020 trial above, a drink with magnesium, potassium and sodium did no better than a glucose drink³.

What is in a drink does change how well it hydrates you at rest. In 19 young adults who drank 1 L of fluid, electrolytes alone did not consistently beat water on the beverage hydration index, but electrolytes with carbohydrate kept more fluid in the body than water did at 120 minutes¹¹. That is why a sports drink or oral rehydration solution may restore fluid slightly better than water. It does not mean it treats the hangover itself.

Is a sports drink or an oral rehydration solution better?

No study has compared them for hangover. Choose on sugar, sodium and potassium content, not on hangover claims, especially if you have kidney disease or heart failure. Our guide to hydration support explains what the evidence covers.

Time is the main treatment, and the only reliable prevention is drinking less. NIAAA says no remedy has been scientifically proven and that symptoms peak as blood alcohol reaches about zero, lasting 24 hours or longer¹.

The systematic reviews agree:

• 2005 BMJ review: eight randomized trials of eight interventions, including fructose or glucose. It found no compelling evidence for any, and concluded that abstinence or moderation is the most effective way to avoid a hangover¹².
• 2017 review: six controlled studies of products such as red ginseng and Korean pear juice. Some improved certain symptoms, and none helped all of them¹³.
• 2022 review: 21 placebo-controlled trials in 386 participants. All efficacy findings were rated very low quality, and no two trials tested the same intervention¹⁴.

Hangover most likely comes from alcohol metabolites, brain chemistry changes, inflammation and mitochondrial dysfunction, though many human studies are poorly controlled¹⁵. NIAAA adds disrupted sleep and stomach irritation to the list¹.

A caution on medicines: NIAAA warns that mixing acetaminophen (paracetamol) with alcohol can be toxic to the liver, and that aspirin and ibuprofen can irritate the stomach lining¹. US labels for these pain relievers warn that having 3 or more alcoholic drinks a day while using them raises the risk of severe liver damage from acetaminophen and of severe stomach bleeding from aspirin, ibuprofen and other NSAIDs¹⁶.

Taking alcohol with opioids or with sedatives such as sleep aids and anti-anxiety medicines raises the risk of an overdose, and NIAAA warns that even over-the-counter antihistamines can be dangerous with alcohol¹⁷.

No evidence says one timing works better, because no trial has compared timings.

If you want to use one, the logic of the data points to a simple plan:

• Before and during: water between drinks did not change ethanol levels or next-day symptoms in the water trial above¹⁰, and a mineral drink taken before and after drinking did not help in the 2020 trial³. Do not expect a drink to protect you.
• The next morning: sip fluids until you are no longer thirsty, unless a clinician has told you to limit fluids, as some people with heart failure or kidney disease are^{18, 19}. Thirst is a normal part of the mild dehydration that NIAAA describes¹.
• Do not drive or work machinery: attention, decision-making and coordination can stay impaired during a hangover¹.

Most healthy adults tolerate a standard electrolyte drink, but three minerals carry real limits.

• Potassium: adult adequate intake is 3,400 mg a day for men and 2,600 mg for women, but those figures do not apply to people whose bodies clear potassium poorly. With chronic kidney disease, or with medicines such as ACE inhibitors, angiotensin receptor blockers (ARBs) or potassium-sparing diuretics, even intakes below those amounts can push blood potassium too high (hyperkalemia). Heart failure, type 1 diabetes, adrenal insufficiency and liver disease also raise the risk, and severe hyperkalemia can cause life-threatening heart rhythm problems. Very large doses from supplements can cause it even in healthy people²⁰. See our potassium page and our guide to potassium-rich foods.
• Sodium: too much sodium makes the body hold on to fluid, which can raise blood pressure and strain the kidneys and heart. Adults are advised to keep to 2,300 mg a day or less, and many people with kidney disease need less¹⁹. People with heart failure may be asked to limit both salt and fluids¹⁸. If either applies to you, count the sodium in electrolyte drinks and powders.
• Magnesium: the upper limit for supplemental magnesium is 350 mg a day for adults. High doses often cause diarrhea, which adds to fluid loss, and the risk of toxicity rises with impaired kidney function²¹. More on dosing is on the magnesium page.

Minerals such as magnesium, zinc and selenium have been proposed for hangover because they support antioxidant and anti-inflammatory systems. A 2010 review called this speculation and said controlled trials were needed²². In the 2020 trial, a drink containing magnesium and zinc did not help³.

Treat an electrolyte drink as hydration, not a hangover treatment.

• If you drink: the hangover gets worse with more alcohol regardless of whether the drink is beer, wine or spirits¹. Drinking less is the one measure with consistent support.
• If you are thirsty the next day: water, or a drink with sodium and some carbohydrate, is fine for most healthy adults. Skip high-dose potassium or magnesium tablets, and check first if you have kidney disease or heart failure.
• If hangover symptoms last well beyond a day: see a clinician.
• If someone shows signs of alcohol overdose: confusion, being hard to wake, seizures, vomiting, slow or irregular breathing, or clammy, pale or bluish skin. Call 911 (or your local emergency number) right away, without waiting for every sign. Do not leave them to sleep it off: blood alcohol can keep rising after drinking stops, and someone who has passed out can choke on their vomit¹⁷. An electrolyte drink is no substitute for emergency care.

Supplements in this guide

• Electrolytes
• Magnesium
• Potassium

We searched PubMed and the NIAAA and NIH Office of Dietary Supplements sites on 13 October 2026 for studies of hangover, dehydration, electrolytes and rehydration. On 14 October 2026 we searched PubMed again for hangover trials and rechecked the safety advice against NIAAA, NIDDK, NHLBI and FDA labeling rules. We read the records of 15 journal papers and 7 government pages, prioritizing systematic reviews and randomized trials in healthy adults. We found no trial of a standard electrolyte drink or oral rehydration solution for hangover; the closest, a 2020 placebo-controlled trial, tested a mineral-and-vitamin drink. Several studies we cite measured hydration or alcohol effects but not next-day hangover, and we say so where it applies. Individual products and brand claims are outside what we reviewed.

1. National Institute on Alcohol Abuse and Alcoholism. Hangovers. https://www.niaaa.nih.gov/publications/brochures-and-fact-sheets/hangovers
2. Mackus M, et al. Alcohol hangover versus dehydration revisited: The effect of drinking water to prevent or alleviate the alcohol hangover. Alcohol. 2024;121:9-18. doi:10.1016/j.alcohol.2024.07.006
3. Lieb B, et al. Randomised double-blind placebo-controlled intervention study on the nutritional efficacy of a food for special medical purposes (FSMP) and a dietary supplement in reducing the symptoms of veisalgia. BMJ Nutr Prev Health. 2020;3(1):31-39. doi:10.1136/bmjnph-2019-000042
4. Ylikahri RH, et al. Alcohol intoxication and hangover: effects on plasma electrolyte concentrations and acid-base balance. Scand J Clin Lab Invest. 1974;34(4):327-36. doi:10.3109/00365517409049888
5. Penning R, et al. The pathology of alcohol hangover. Curr Drug Abuse Rev. 2010;3(2):68-75. doi:10.2174/1874473711003020068
6. Wiese JG, et al. The alcohol hangover. Ann Intern Med. 2000;132(11):897-902. doi:10.7326/0003-4819-132-11-200006060-00008
7. Shirreffs SM, et al. Restoration of fluid balance after exercise-induced dehydration: effects of alcohol consumption. J Appl Physiol (1985). 1997;83(4):1152-8. doi:10.1152/jappl.1997.83.4.1152
8. Redondo Useros N, et al. Influence of alcohol consumption on hydration status in healthy adults. Nutr Hosp. 2015;32 Suppl 2:10334. doi:10.3305/nh.2015.32.sup2.10334
9. Irwin C, et al. The effects of dehydration, moderate alcohol consumption, and rehydration on cognitive functions. Alcohol. 2013;47(3):203-13. doi:10.1016/j.alcohol.2012.12.016
10. Imai H, et al. Water intake during drinking does not alleviate hangover symptoms. Front Pharmacol. 2026;17:1852528. doi:10.3389/fphar.2026.1852528
11. Millard-Stafford M, et al. The Beverage Hydration Index: Influence of Electrolytes, Carbohydrate and Protein. Nutrients. 2021;13(9). doi:10.3390/nu13092933 Our study summary.
12. Pittler MH, et al. Interventions for preventing or treating alcohol hangover: systematic review of randomised controlled trials. BMJ. 2005;331(7531):1515-8. doi:10.1136/bmj.331.7531.1515
13. Jayawardena R, et al. Interventions for treatment and/or prevention of alcohol hangover: Systematic review. Hum Psychopharmacol. 2017;32(5). doi:10.1002/hup.2600
14. Roberts E, et al. The efficacy and tolerability of pharmacologically active interventions for alcohol-induced hangover symptomatology: a systematic review of the evidence from randomised placebo-controlled trials. Addiction. 2022;117(8):2157-2167. doi:10.1111/add.15786
15. Palmer E, et al. Alcohol Hangover: Underlying Biochemical, Inflammatory and Neurochemical Mechanisms. Alcohol Alcohol. 2019;54(3):196-203. doi:10.1093/alcalc/agz016
16. U.S. Food and Drug Administration. 21 CFR 201.326: Over-the-counter drug products containing internal analgesic/antipyretic active ingredients; required warnings and other labeling. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-C/part-201/subpart-G/section-201.326
17. National Institute on Alcohol Abuse and Alcoholism. Understanding the Dangers of Alcohol Overdose. https://www.niaaa.nih.gov/publications/brochures-and-fact-sheets/understanding-dangers-of-alcohol-overdose
18. National Heart, Lung, and Blood Institute. Living With Heart Failure. https://www.nhlbi.nih.gov/health/heart-failure/living-with
19. National Institute of Diabetes and Digestive and Kidney Diseases. Healthy Eating for Adults with Chronic Kidney Disease. https://www.niddk.nih.gov/health-information/kidney-disease/chronic-kidney-disease-ckd/healthy-eating-adults-chronic-kidney-disease
20. National Institutes of Health, Office of Dietary Supplements. Potassium: Fact Sheet for Health Professionals. https://ods.od.nih.gov/factsheets/Potassium-HealthProfessional/
21. National Institutes of Health, Office of Dietary Supplements. Magnesium: Fact Sheet for Health Professionals. https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/
22. Min JA, et al. The application of minerals in managing alcohol hangover: a preliminary review. Curr Drug Abuse Rev. 2010;3(2):110-5. doi:10.2174/1874473711003020110