Most cases of food poisoning resolve on their own within 12 to 48 hours, and the best natural treatment focuses on staying hydrated, easing symptoms, and reintroducing food carefully. Your body is already doing the heavy lifting: vomiting and diarrhea are its way of purging the offending bacteria or toxins. Your job is to support that process without making things worse.
Rehydration Is the Priority
The biggest risk from food poisoning isn’t the infection itself. It’s dehydration from fluid lost through vomiting and diarrhea. Water alone isn’t ideal because you’re also losing electrolytes, particularly sodium and potassium. A simple homemade oral rehydration solution works well: mix 4 cups of water with half a teaspoon of table salt and 2 tablespoons of sugar. The sugar helps your intestines absorb the sodium and water more efficiently. Sip it slowly rather than gulping, especially if you’re still nauseous.
Other good options include clear broth, diluted fruit juice, electrolyte drinks, and weak uncaffeinated tea. Popsicles and ice chips work well if even small sips trigger vomiting. The goal is frequent, small amounts rather than large volumes at once. If you’re urinating noticeably less than normal, your mouth and throat feel dry, or you feel dizzy when standing, you’re already significantly dehydrated.
Ginger for Nausea
Ginger is one of the most studied natural remedies for nausea, and the evidence consistently supports it. The active compounds in ginger, particularly in fresh root and dried powder, work on receptors in the gut and brain that trigger the urge to vomit. Clinical studies across pregnancy-related nausea, post-surgical nausea, and chemotherapy side effects have found that doses around 1,000 mg of ginger daily (roughly half a teaspoon of dried ginger powder) significantly reduce nausea. Lower doses in the range of 500 mg to 1,000 mg appear to be the sweet spot.
For practical purposes, grating about an inch of fresh ginger root into hot water makes a strong tea. Steep it for 5 to 10 minutes. You can also chew on small pieces of crystallized ginger or use ginger capsules if you have them on hand. Ginger ale is a less reliable option since most commercial brands contain very little actual ginger.
Peppermint Tea for Cramping
If abdominal cramping is a major symptom, peppermint can help. The menthol in peppermint relaxes the smooth muscle lining your intestines by blocking calcium channels that trigger contractions. This is the same mechanism that makes peppermint oil effective for irritable bowel syndrome, and it applies to the spasms and cramping that come with food poisoning. Brewing a cup of peppermint tea from leaves or a tea bag is the simplest approach. It’s gentle enough to alternate with your rehydration fluids throughout the day.
What to Eat (and When)
If you’re actively vomiting, stick to liquids only. Don’t force food. Once the vomiting stops and you feel ready, start with small, bland meals. The old advice to eat only bananas, rice, applesauce, and toast (the BRAT diet) is no longer recommended as a strict protocol because it’s too low in protein, fiber, calcium, and other nutrients your body needs to recover. It’s fine for the first day when you’re at your sickest, but you should expand beyond it quickly.
Good early foods include brothy soups, oatmeal, boiled potatoes, saltine crackers, and dry cereal. As your stomach settles, add scrambled eggs, skinless chicken or turkey, and cooked vegetables. Eat small portions. Your stomach handles frequent small meals far better than large ones during recovery. Avoid dairy, fatty foods, spicy dishes, caffeine, and alcohol until you’re feeling consistently better, as these can all irritate an already inflamed gut.
Probiotics Can Shorten Recovery
Certain probiotic strains can meaningfully reduce how long diarrhea lasts. The best-studied strain for acute infectious diarrhea is Saccharomyces boulardii, a beneficial yeast available over the counter in most pharmacies and health food stores. In clinical trials, people taking S. boulardii recovered from diarrhea in about 3.6 days compared to 4.8 days for those who didn’t, a full day shorter. Lactobacillus rhamnosus GG and Lactobacillus reuteri have also shown benefits.
You can start a probiotic as soon as symptoms begin. Look for products that specifically list one of these strains on the label. Fermented foods like plain yogurt and kefir contain beneficial bacteria too, but they’re better suited for the later stages of recovery when your stomach can tolerate them.
Apple Cider Vinegar and Honey
Apple cider vinegar is a popular home remedy, and there’s some laboratory basis for it. The acetic acid in vinegar does kill food-borne pathogens, including dangerous strains of E. coli, at concentrations as low as 0.1%. The antibacterial effect increases with temperature and in the presence of salt. However, these results come from lab dishes, not from drinking vinegar during an active infection. The bacteria causing your symptoms have already colonized your gut, and a tablespoon of diluted vinegar passing through your stomach is unlikely to replicate lab conditions. It won’t hurt in small amounts (a tablespoon in a glass of water), but don’t expect it to cure anything.
Honey shows similar lab activity against pathogens like Salmonella and Staphylococcus aureus, with effectiveness varying by floral source and concentration. As a practical remedy, a spoonful of honey in warm water or tea can soothe your throat after vomiting and provide a small amount of easily absorbed energy. It’s a reasonable comfort measure, not a treatment.
What Not to Do
Resist the urge to take anti-diarrheal medications during the first several hours. Diarrhea is your body’s primary method of expelling the pathogen, and slowing it down can prolong the infection. Activated charcoal is sometimes suggested online, but it’s designed for acute poisoning scenarios (like drug overdoses) where it’s given within an hour of ingestion at very high doses, typically 50 to 100 grams for an adult. By the time you have food poisoning symptoms, the toxins have already been absorbed, making charcoal largely useless. It can also cause constipation and interfere with any medications you’re taking.
Avoid coffee, alcohol, and sugary sodas. All three can worsen dehydration. Don’t take aspirin or ibuprofen on an empty, irritated stomach, as they can further inflame your gut lining.
When Food Poisoning Needs Medical Attention
Most food poisoning passes within two days, but certain symptoms signal something more serious. The CDC identifies these as red flags: bloody diarrhea, diarrhea lasting more than 3 days, a fever above 102°F, vomiting so frequent you can’t keep any liquids down, and signs of dehydration like minimal urination, dry mouth, or dizziness on standing. Some pathogens, like campylobacter, can produce symptoms lasting weeks. Young children, older adults, pregnant women, and anyone with a weakened immune system face higher risks of complications and should have a lower threshold for seeking care.