Skip to content

What foods are good for stomach flu? A guide to gentle and hydrating nutrition

4 min read

With norovirus alone causing over 685 million cases globally each year, the stomach flu is a common ailment that leaves your digestive system inflamed and sensitive. Knowing what foods are good for stomach flu is critical for a fast recovery, helping to reduce symptoms like nausea, vomiting, and diarrhea while replenishing lost fluids and nutrients.

Quick Summary

Guidance on how to eat and drink during and after a stomach bug to help recovery. Focus on gentle, bland foods like the BRAT diet, maintaining hydration with electrolytes, and gradually reintroducing regular food. Avoid irritants like fatty, spicy, and high-sugar items to prevent worsening symptoms.

Key Points

  • Prioritize Hydration: Replenish fluids and electrolytes lost from vomiting and diarrhea by sipping clear fluids and oral rehydration solutions like Pedialyte.

  • Start with Bland Foods: The BRAT diet (bananas, white rice, applesauce, toast) is a good starting point due to its easy-to-digest, low-fiber nature.

  • Avoid Irritating Foods: Stay away from fatty, spicy, high-sugar, and high-fiber foods, as well as caffeine and alcohol, until you feel completely better.

  • Reintroduce Dairy Slowly: Some people experience temporary lactose intolerance after a stomach bug, so reintroduce low-fat dairy like yogurt cautiously.

  • Gradual Transition: Slowly expand your diet beyond the BRAT foods to include lean proteins (baked chicken, eggs) and cooked vegetables for more comprehensive nutrition.

  • Consider Probiotics: Once tolerated, probiotic-rich foods like yogurt or a supplement may help restore healthy gut bacteria disrupted by the illness.

In This Article

Hydration First: The Most Critical Step

Before reintroducing solid foods, the primary focus is staying hydrated, especially after bouts of vomiting and diarrhea. These symptoms deplete your body of fluids and crucial electrolytes like sodium and potassium, which regulate vital functions such as fluid balance and muscle contractions.

What to drink for rapid rehydration

During the initial hours, when you feel most unwell, your stomach can be extremely sensitive. The best approach is to take small, frequent sips of fluid rather than large gulps, which can trigger more nausea.

  • Oral Rehydration Solutions (ORS): Products like Pedialyte are scientifically formulated with the correct balance of glucose and electrolytes to treat dehydration effectively, especially for children, older adults, and those with compromised immune systems.
  • Clear Broths: Clear chicken or vegetable broth is gentle on the stomach and an excellent source of sodium, helping to replenish lost electrolytes.
  • Herbal Teas: Ginger or peppermint tea can be particularly soothing for nausea, while chamomile can be calming.
  • Water: Plain water is always an option, but for significant fluid loss, it should be supplemented with electrolytes.
  • Coconut Water: A natural source of potassium and other electrolytes, it is a good low-sugar option.

The BRAT Diet and Beyond

Once clear liquids are tolerated without nausea for several hours, you can begin to introduce bland, easy-to-digest solid foods. The traditional BRAT diet is a popular starting point, but it lacks the nutritional variety needed for a full recovery and should not be followed for more than a couple of days. Instead, use it as a foundation and slowly expand your diet with other gentle options.

The BRAT diet: A gentle starting point

  • Bananas: Rich in potassium to replenish what's lost, bananas also help firm up stools due to their pectin content.
  • Rice: Plain, white rice is easily digestible and helps bind the stool. Brown rice and other whole grains have too much fiber and should be avoided initially.
  • Applesauce: A simple, unsweetened applesauce provides easily digestible carbohydrates and pectin to help with diarrhea.
  • Toast: Simple white toast is easy to digest. Avoid butter and high-fiber whole-wheat bread until you are fully recovered.

Expanding your bland diet

As you feel better, other gentle foods can be added to ensure a more balanced nutrient intake. Lean proteins are important for muscle recovery, while cooked vegetables can provide essential vitamins and minerals without the stress of raw fiber.

  • Lean proteins: Scrambled eggs, skinless baked or boiled chicken, and steamed fish are easy on the stomach.
  • Plain potatoes: Mashed or boiled plain potatoes are a great source of energy and potassium. Avoid heavy toppings like butter or sour cream.
  • Cooked vegetables: Steamed carrots, green beans, and zucchini are low in fiber and easy to digest.
  • Dry, low-fiber cereals and crackers: Saltine crackers and unflavored cereals provide easy carbohydrates and salt, which can help replenish lost electrolytes.

Comparison: Foods to Eat vs. Foods to Avoid

Foods to Eat Foods to Avoid
Clear broths and bouillon Dairy products (especially high-fat)
Oral rehydration solutions (Pedialyte) Fried, greasy, and high-fat foods
Water, ice chips, coconut water Spicy foods and strong seasonings
Bananas, unsweetened applesauce High-fiber foods (whole grains, raw veggies)
Plain white rice, white toast Caffeine (coffee, tea, soda, chocolate)
Lean meats (baked chicken, fish) Alcohol
Cooked, peeled vegetables (carrots) Sugary drinks and sweets
Plain eggs, clear gelatin Citrus and acidic fruits
Low-fat yogurt with probiotics Processed meats

The Role of Probiotics in Recovery

Viral gastroenteritis can temporarily alter the balance of good bacteria in your gut. As your stomach begins to settle, introducing probiotics can help restore a healthy gut microbiome and may help shorten the duration of diarrhea.

Sources of probiotics

  • Low-fat yogurt or kefir: Provided you can tolerate a small amount of dairy, unsweetened and low-fat yogurt with live cultures can help restore gut flora.
  • Probiotic Supplements: Studies suggest that specific strains, like Saccharomyces boulardii, may be useful, but consultation with a doctor is advised, as research is still ongoing.

Easing Back to a Normal Diet

The full recovery process is gradual. After 2–3 days of bland, easily digestible foods, you can slowly begin to reintroduce more variety. Listen to your body and add one new food at a time to see how you tolerate it. Some people may experience temporary lactose intolerance after a stomach bug, so reintroducing dairy slowly is recommended. If symptoms return, simply go back to the bland diet for a day or so.

Conclusion

Navigating the stomach flu requires a gentle, patient approach to eating. Prioritizing hydration with clear fluids and oral rehydration solutions is the crucial first step. As your symptoms ease, transition to bland foods like the BRAT diet, then gradually introduce other nutritious items like lean proteins and cooked vegetables. Avoiding high-fat, spicy, and sugary foods will prevent further irritation and ensure a smoother recovery, getting you back to your regular diet in no time.

Authority Link

For more detailed information on treating viral gastroenteritis, refer to the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).

Frequently Asked Questions

After vomiting has stopped, wait for a few hours to let your stomach settle. Start with small sips of clear liquids and progress to bland, solid foods only when you can tolerate fluids without nausea.

The BRAT diet consists of bananas, rice, applesauce, and toast. It's recommended as a temporary starting point because it's bland and easy to digest, but due to its limited nutrients, it should only be followed for a short time before introducing other bland foods.

It is best to avoid most dairy products, except for potentially yogurt with probiotics, as they can be hard to digest and may worsen diarrhea. Your gut might temporarily lose the ability to break down lactose.

Sip clear fluids frequently in small amounts, such as water, oral rehydration solutions (e.g., Pedialyte), clear broths, or herbal teas. Suck on ice chips if you have trouble keeping liquids down.

Sports drinks can help replenish electrolytes but can be high in sugar, which might worsen diarrhea. Oral rehydration solutions are often a better choice, especially for children, as they have a more balanced electrolyte-to-sugar ratio.

Transition back to your regular diet gradually, after a few days of consuming bland foods without symptoms. Add one new food at a time and monitor your tolerance.

Probiotics, particularly in yogurt with live cultures or supplements, may help restore a healthy balance of gut bacteria and potentially shorten the duration of diarrhea. Consult a doctor before starting a supplement.

References

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.