When you have salmonella, the most important thing you put in your body isn’t food. It’s fluid. Most cases resolve on their own within four to seven days with nothing more than hydration and gradual reintroduction of easy-to-digest meals. The good news: you don’t need to starve yourself or follow a strict diet. Current evidence shows that restricting what you eat doesn’t actually help treat diarrhea, and you can return to your normal diet as soon as your appetite comes back.
Fluids Come First
Salmonella causes diarrhea and sometimes vomiting, both of which pull water and essential minerals out of your body fast. Replacing those lost fluids is the single most effective thing you can do at home. Water alone is fine for mild cases, but if you’re dealing with frequent watery stools, you need to replace electrolytes too. Sports drinks, coconut water, and clear broths all help.
For more significant fluid loss, you can make a simple oral rehydration solution at home using the World Health Organization’s formula: mix half a teaspoon of salt and two tablespoons of sugar into about four and a quarter cups of clean water. The sugar helps your intestines absorb the salt and water more efficiently. Sip it steadily throughout the day rather than gulping large amounts at once, which can trigger more nausea.
Signs that dehydration is becoming serious include peeing very little or producing very dark urine, a dry mouth or throat, dizziness, extreme thirst, or (in young children) crying without tears. If you notice these, you likely need medical attention for intravenous fluids.
What to Eat While You’re Still Sick
You may have heard of the BRAT diet (bananas, rice, applesauce, toast), and those foods are gentle enough during acute illness. But they’re nutritionally thin, and most experts no longer recommend sticking to them exclusively. Instead, think of them as a starting point and expand from there as tolerated.
Good options while your stomach is still unsettled include brothy soups, oatmeal, boiled potatoes, plain crackers, and unsweetened dry cereal. These are easy to digest and unlikely to make nausea or cramping worse. Eat small amounts frequently rather than full meals. If something stays down comfortably, that’s your signal to eat a little more at the next sitting.
Once the worst nausea has passed and you’re keeping bland foods down, start adding more nutrient-dense choices. Cooked carrots, butternut or pumpkin squash, sweet potatoes without the skin, avocado, skinless chicken or turkey, fish, and eggs are all bland enough to be well tolerated while delivering the protein and vitamins your body needs to recover. You don’t have to wait until symptoms are completely gone. If your appetite is returning, your gut is ready for real food.
Foods That Can Make Things Worse
While your intestines are inflamed, certain foods are more likely to trigger cramping, bloating, or additional rounds of diarrhea.
- Dairy products: Salmonella can temporarily damage the lining of your small intestine, reducing your ability to digest lactose. Milk, ice cream, and soft cheeses often make diarrhea worse until your gut heals. Hard cheeses and yogurt are usually better tolerated.
- High-fat and greasy foods: Animal research shows that high-fat diets increase intestinal permeability, essentially making the gut lining leakier. During an active infection, fatty foods can worsen inflammation and slow recovery. Skip fried foods, heavy sauces, and rich meats until you’re feeling substantially better.
- Concentrated sugars: Sodas, fruit juices, candy, and other high-sugar items can draw extra water into the intestines through osmosis, making diarrhea more frequent.
- Caffeine and alcohol: Both are dehydrating. Coffee also stimulates intestinal contractions, which is the last thing you need when your gut is already in overdrive.
- Raw vegetables and high-fiber foods: Whole grains, raw salads, beans, and cruciferous vegetables like broccoli require more digestive effort. Save them for later in recovery when your stools have started firming up.
Probiotics May Speed Recovery
A specific yeast-based probiotic called Saccharomyces boulardii has shown promise for shortening salmonella-related diarrhea. In clinical trials, patients who took it alongside oral rehydration had fewer daily bowel movements and reached their first formed stool significantly sooner than those on standard care alone. The dose used in studies was 500 to 750 milligrams per day. You can find S. boulardii supplements at most pharmacies. Unlike bacterial probiotics, this yeast isn’t affected by antibiotics, so it works even if you end up needing them.
Other probiotic strains found in fermented foods like yogurt and kefir may also help repopulate beneficial gut bacteria after infection, though the evidence is strongest for S. boulardii specifically.
What Recovery Actually Looks Like
Most people with non-typhoidal salmonella (the common kind from contaminated eggs, poultry, or produce) recover with nothing more than fluids and rest. The CDC notes that supportive care, meaning hydration and electrolyte replacement, is the only treatment most patients need. Antibiotics are reserved for severe cases or people at higher risk of complications, such as very young children, older adults, and those with weakened immune systems.
A realistic timeline: the first one to three days are usually the roughest, with frequent diarrhea, cramping, and sometimes fever. By days three through five, appetite typically starts returning. Most people feel close to normal within a week, though loose stools can linger for a few days beyond that. During that tail end, keep prioritizing cooked vegetables, lean proteins, and simple starches. There’s no need to rush back to spicy takeout or a heavy dinner, but there’s also no need to restrict yourself to plain toast if your body is asking for more.
For parents: give children whatever they normally eat as soon as they’re willing. Infants should continue breast milk or formula throughout the illness. There’s no benefit to withholding food or switching to a special diet for kids.