By goal
Evidence-Backed Supplements for Hangover Recovery
After a night of drinking, many people reach for supplements hoping to blunt the headache, nausea, and fatigue of a hangover. The honest picture is that no supplement reliably "cures" a hangover, and the evidence behind popular options varies a lot. The better-studied building blocks here are general support rather than hangover-specific: caffeine can temporarily mask grogginess, vitamin B12 matters for anyone deficient, and N-acetylcysteine (NAC) is a glutathione precursor with broad clinical use though only indirect hangover data. Ginger has reasonable evidence for nausea, while magnesium, vitamin C, and curcumin rest on moderate but mostly non-hangover research. Others, including Panax ginseng, taurine, and glutathione, are preliminary, and milk thistle's liver claims are genuinely mixed. We grade each by what the research actually shows. This is educational information, not medical advice. The only proven prevention is drinking less, so talk to your doctor or pharmacist before using supplements, especially with medications or liver concerns.
| Supplement | Evidence for this goal | Typical dose | Key caution | Studies |
|---|---|---|---|---|
| Caffeine | Strong | 3–6 mg/kg pre-exercise for ergogenic effect; ≤400 mg/day generally safe… | Safe ≤400 mg/day for most adults. | 20 |
| Vitamin B12 | Strong | 2.4 µg/day RDA; deficiency corrected with high oral (500–1,000 µg) or i… | Very safe; excess excreted. | 23 |
| Curcumin (Turmeric) | Moderate | 500–1,000 mg curcuminoids/day; bioavailability-enhanced forms preferred. | Generally safe. | 23 |
| Ginger | Moderate | 1–1.5 g/day of dried ginger powder in divided doses (typically 250 mg,… | Generally well tolerated at culinary and supplemental doses; the most common side effects a… | 18 |
| Magnesium | Moderate | 200–400 mg elemental/day. Glycinate & citrate absorb best; oxide is poo… | Safe. | 20 |
| N-Acetylcysteine (NAC) | Moderate | 600–1,800 mg/day; psychiatric trials often use 2,400 mg/day. | Generally safe. | 21 |
| Vitamin C | Moderate | 75–90 mg/day RDA; 200 mg saturates tissues. Doses >1g mostly excreted. | Safe. | 21 |
| Glutathione (Skin Whitening) | Preliminary | Studied oral doses ~250–500 mg/day for 4–12 weeks; IV/injectable is the… | Oral glutathione at studied doses appears well tolerated short-term, but long-term cosmetic… | 18 |
| Panax Ginseng | Preliminary | 200–400 mg/day standardized extract. | Generally safe short-term. | 16 |
| Taurine | Preliminary | 1-3 g per day orally; cardiometabolic and obesity trials used 0.5-6 g/d… | Taurine is generally recognized as safe and well tolerated at doses up to ~3 g/day, with th… | 16 |
| Milk Thistle (Silymarin) | Mixed | Typically 140 mg silymarin 2–3 times daily (about 280–420 mg/day) of st… | Generally well tolerated; the most common adverse effects are mild gastrointestinal symptom… | 21 |