Most upset stomachs resolve on their own within a day or two, and the best thing you can do is stay hydrated, eat lightly, and give your digestive system time to recover. What helps most depends on your specific symptoms, whether that’s nausea, cramping, bloating, or diarrhea. Here’s a practical breakdown of what actually works.
Start With Fluids, Not Food
Dehydration is the biggest risk when you’re dealing with vomiting or diarrhea, so replacing lost fluids is your first priority. Small, frequent sips work better than gulping a full glass, which can trigger more nausea. Water is fine for mild cases, but if you’ve been vomiting or have had diarrhea for more than a few hours, you’re losing electrolytes (sodium and potassium) that plain water won’t replace.
Premixed oral rehydration solutions, available at any pharmacy or grocery store, are designed specifically for this. They contain a balanced ratio of sugar and sodium that helps your gut absorb water more efficiently. You can also make a simple version at home with water, a small amount of salt, and sugar. Broth, diluted juice, and coconut water are decent alternatives. Avoid coffee, alcohol, and sugary sodas, which can irritate your stomach or pull more water into your intestines and worsen diarrhea.
What to Eat (and What to Skip)
You may have heard of the BRAT diet: bananas, rice, applesauce, and toast. It was once the standard recommendation for stomach trouble, but it’s no longer advised as a strict plan. The American Academy of Pediatrics dropped it from their guidelines because it’s too low in protein, calcium, fiber, and vitamin B12 to support recovery if followed for more than a day. Sticking to it exclusively can actually slow down how quickly your gut heals.
A better approach is to eat as you can tolerate it. Start with bland, easy-to-digest foods: plain crackers, white rice, boiled potatoes, or plain chicken. The BRAT foods are fine as part of a broader mix, just don’t limit yourself to only those four. Avoid greasy, spicy, or highly acidic foods until you’re feeling more like yourself. Dairy can be tough on an irritated stomach for some people, so consider skipping it for the first day or so. Eat smaller portions more frequently rather than sitting down for a full meal.
Ginger for Nausea
Ginger is one of the most well-studied natural remedies for nausea, and its reputation is deserved. The active compounds in ginger work by partially blocking serotonin receptors in your gut, the same receptors that prescription anti-nausea medications target, though ginger’s effect is milder. This action helps calm the signals your stomach sends to your brain that trigger the urge to vomit.
Fresh ginger tea is simple to make: slice a thumb-sized piece of raw ginger, steep it in hot water for five to ten minutes, and sip slowly. Ginger chews, ginger ale made with real ginger (check the label, many brands use only flavoring), and ginger capsules from a health food store all work too. If nausea is your primary symptom, ginger is worth trying before reaching for medication.
Peppermint for Cramping and Bloating
If your upset stomach involves cramping, bloating, or that uncomfortable “tight” feeling, peppermint can help. Menthol, peppermint’s main active ingredient, relaxes the smooth muscle lining your digestive tract, which eases spasms and helps trapped gas move through. It also acts on pain receptors in the gut, which can reduce the intensity of cramping.
Peppermint tea is the easiest option. You can also find enteric-coated peppermint oil capsules at most drugstores. The coating prevents the capsule from dissolving in your stomach, so the oil releases lower in your digestive tract where it’s most effective for bloating and intestinal cramps. One caveat: if your symptoms include acid reflux or heartburn, peppermint can make those worse because the same muscle relaxation that eases cramps also relaxes the valve at the top of your stomach.
A Heating Pad Helps More Than You’d Think
Placing a warm (not hot) heating pad or hot water bottle on your abdomen is a surprisingly effective way to ease stomach cramps. The heat relaxes the outer abdominal muscles and promotes movement through the digestive tract, which helps with both pain and bloating. Fifteen to twenty minutes at a time is enough. A warm bath works on the same principle. This is especially useful at night when stomach discomfort can make it hard to sleep.
The Wrist Pressure Point for Nausea
Acupressure at a spot called P6, located on the inside of your wrist, can reduce mild nausea. To find it, place three fingers flat across the inside of your wrist just below the crease where your hand meets your arm. The point sits in the groove between the two large tendons that run down toward your palm. Press firmly with your thumb for two to three minutes, then switch wrists. This is the same principle behind anti-nausea wristbands sold for motion sickness and morning sickness. It won’t eliminate severe nausea, but for mild queasiness, it’s free and worth a try.
Over-the-Counter Options
For nausea, indigestion, and mild diarrhea, bismuth subsalicylate (the active ingredient in Pepto-Bismol) coats the stomach lining and reduces inflammation in the gut. It’s a reasonable first choice when you’re not sure exactly what’s going on but your stomach generally feels off. Note that it can temporarily turn your tongue and stool black, which is harmless but alarming if you don’t expect it.
If diarrhea is your main problem and you need it to stop for practical reasons (a work meeting, a flight), loperamide (Imodium) slows the movement of your intestines, giving them more time to absorb water. It’s effective but shouldn’t be your go-to if you suspect food poisoning, because diarrhea is your body’s way of flushing out the offending bacteria or toxin. Antacids can help if your upset stomach involves heartburn or acid-related discomfort.
Probiotics Can Speed Recovery
Certain probiotic strains have solid clinical evidence behind them for shortening bouts of acute diarrhea. Two strains in particular, Lactobacillus rhamnosus GG and Saccharomyces boulardii (a beneficial yeast), are specifically recommended by international gastroenterology guidelines. In clinical trials, children receiving S. boulardii recovered from diarrhea roughly one day faster than those who didn’t. These probiotics are available over the counter in capsule or powder form. They’re not a quick fix, but starting them early in a bout of stomach trouble can help your gut flora rebalance faster.
Food Poisoning vs. Stomach Virus
It helps to know what you’re dealing with. Food poisoning tends to hit fast, typically within two to six hours of eating contaminated food, and it usually resolves quickly. The stomach flu (viral gastroenteritis) has a longer incubation period of 24 to 48 hours and generally lasts about two days, sometimes longer. Both cause nausea, vomiting, diarrhea, and cramping, so timing is the easiest way to tell them apart. If you ate something questionable at lunch and feel terrible by dinner, food poisoning is the likely culprit. If symptoms crept up over a day or two, especially if people around you are also sick, it’s more likely viral.
The treatment for both is essentially the same: fluids, rest, bland food, and time. Most cases don’t require medical attention.
Symptoms That Need Medical Attention
Most upset stomachs are uncomfortable but harmless. A few warning signs suggest something more serious is going on:
- Pain so severe it interrupts your ability to function, especially if it started suddenly or is getting worse over hours
- Inability to keep any liquids down for more than 12 to 24 hours
- Blood in your vomit or stool
- Fever above 101.5°F combined with abdominal pain
- Pain that starts near your belly button and moves to your lower right side, which may indicate appendicitis
- Severe bloating with inability to pass gas or have a bowel movement, particularly if you’ve had abdominal surgery in the past, as this can suggest a bowel obstruction
If your pain is noticeably different from anything you’ve experienced before, whether in intensity, location, or accompanying symptoms, that’s worth taking seriously even if you can’t pinpoint why it feels wrong.