After food poisoning, the most important thing to drink is water or an oral rehydration solution containing both sodium and glucose. Your body loses fluid rapidly through vomiting and diarrhea, and replacing that fluid in the right way is the single biggest factor in how quickly you recover. But timing and technique matter just as much as what’s in your glass.
Wait Before You Drink Anything
If you’re still actively vomiting, resist the urge to gulp down fluids. Wait one to two hours after your last episode of vomiting before introducing any liquid. This gives your stomach time to settle, and drinking too soon often triggers another round of nausea.
Once that window passes, start with two ounces of clear liquid (about four tablespoons) per hour for the next three to four hours. Take small, frequent sips rather than drinking a full glass at once. If you tolerate that well, gradually increase the amount. Rushing this process is one of the most common mistakes people make, and it almost always backfires.
The Best Drinks for Recovery
Plain water is a fine starting point, but it doesn’t replace the sodium and potassium you’ve lost. An oral rehydration solution (ORS) is the gold standard because it contains a specific balance of sodium and glucose that your gut absorbs together. This sodium-glucose pairing activates a transport system in your intestinal lining that pulls fluid into your body far more efficiently than water alone. The WHO formula uses a 1:1 ratio of sodium to glucose. Premixed versions sold at pharmacies use a ratio closer to 1:3, which still works well.
If you don’t have a commercial ORS on hand, these are your next best options, roughly in order of effectiveness:
- Clear broth: Chicken, beef, or vegetable broth provides sodium, potassium, and a small amount of calories. Bone broth in particular contains amino acids like glutamine and glycine that support intestinal barrier repair and may help reduce gut inflammation during recovery.
- Sports drinks: Higher in sugar than ORS, but they do contain electrolytes. Diluting them with equal parts water reduces the sugar load, which can be easier on an irritated stomach.
- Pulp-free fruit juice diluted with water: Apple juice or white grape juice mixed 50/50 with water provides some potassium and easy calories without overwhelming your digestive system.
- Flavored water or flat ginger ale: Carbonation can aggravate nausea, so let sodas go flat first. Ginger ale specifically offers mild nausea relief from the ginger content, though most commercial brands contain very little actual ginger.
Plain tea and coffee without milk are technically clear liquids, but caffeine can worsen dehydration and irritate your stomach lining. Stick with herbal teas if you want something warm.
Coconut Water: Not as Ideal as You’d Think
Coconut water is often marketed as a natural rehydration drink, but it’s a poor substitute for ORS after food poisoning. The problem is sodium. Coconut water contains high levels of potassium but very low sodium, sometimes as little as 3 mEq/L compared to the 75 mEq/L in a proper rehydration solution. Research examining coconut water for childhood diarrhea found that its sodium and glucose concentrations were never high enough to function as an oral rehydration solution, with significant variability depending on the maturity of the coconut. It’s fine as a supplementary drink once you’re past the worst of it, but don’t rely on it as your primary fluid.
Ginger and Peppermint Tea for Nausea
If nausea is lingering even after vomiting stops, ginger tea is one of the most effective natural options. Clinical research has consistently shown that ginger reduces nausea severity compared to placebo, with one study finding nausea scores roughly three times lower in a ginger group than in a control group. Peppermint also performed well in the same research, though ginger had a slight edge.
To make ginger tea, steep a few thin slices of fresh ginger root in hot water for five to ten minutes. This delivers more of the active compounds than most commercial ginger tea bags. Sip it slowly and at a warm (not hot) temperature to avoid further irritating your stomach. Peppermint tea works similarly and can also help ease abdominal cramping.
When to Add Probiotic Drinks
Fermented drinks like kefir and kombucha contain live bacteria that can help restore your gut microbiome after food poisoning disrupts it. Some research suggests probiotics may shorten the duration of diarrhea. However, these are better suited for the later recovery phase, once you’re tolerating solid foods again, rather than the acute stage when your stomach is still unsettled. Kefir contains dairy, and kombucha is acidic and carbonated, both of which can aggravate symptoms early on.
If you want to introduce probiotics sooner, a supplement in capsule form may be gentler than a fermented beverage. This is especially worth discussing with a doctor for young children, older adults, or anyone with a weakened immune system.
What Not to Drink
Alcohol is the worst choice during recovery. It’s a diuretic, meaning it accelerates fluid loss, and it directly irritates the gut lining. Milk and dairy-based drinks can be difficult to digest because food poisoning temporarily reduces your gut’s ability to break down lactose. Highly caffeinated beverages like energy drinks speed up intestinal motility, which can worsen diarrhea. Sugary sodas and undiluted fruit juice pull water into your intestines through osmosis, which can actually increase fluid loss rather than reverse it.
Signs You Need More Than Fluids
Most food poisoning resolves on its own within one to three days with proper hydration. But some warning signs indicate you’re losing the battle against dehydration. Dark yellow or amber urine means you need significantly more fluid. Skin that stays “tented” when you pinch the back of your hand (instead of snapping flat immediately) is a reliable sign of moderate to severe dehydration. A rapid heart rate at rest, dizziness when standing, or producing very little urine are all signals that oral rehydration may not be enough.
Diarrhea lasting more than 24 hours or a fever above 102°F also warrants medical attention. At that point, you may need intravenous fluids to catch up on what you’ve lost.