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What Should You Eat When You Have Viral Diarrhea? A Nutritional Guide

4 min read

Dehydration is one of the most common complications of viral gastroenteritis, so staying properly hydrated is critical during this illness. Knowing what should you eat when you have viral diarrhea is essential for soothing your digestive system and helping your body recover quickly.

Quick Summary

During a bout of viral diarrhea, focus on consuming clear liquids and bland, easy-to-digest foods to aid recovery. Avoid fatty, sugary, and irritating foods that can prolong symptoms. Prioritizing rehydration is the most important step.

Key Points

  • Prioritize Rehydration: The most critical step is to replenish lost fluids and electrolytes with water and oral rehydration solutions to prevent dehydration.

  • Start with Bland Foods: Begin by consuming easy-to-digest, low-fiber foods like bananas, rice, applesauce, and toast to help soothe your stomach.

  • Avoid Trigger Foods: Stay away from fatty, spicy, and sugary foods, as well as caffeine, alcohol, and most dairy, which can worsen symptoms.

  • Reintroduce Foods Gradually: Slowly add more variety back into your diet as your symptoms improve, but revert to bland foods if irritation returns.

  • Consider Probiotics: Low-fat yogurt and kefir can help restore good gut bacteria, but reintroduce dairy cautiously due to potential temporary lactose intolerance.

  • Eat Small, Frequent Meals: Opt for smaller, more frequent meals rather than large ones to avoid overwhelming your sensitive digestive system.

In This Article

Prioritizing Hydration: The First Step in Recovery

When viral diarrhea strikes, the body loses significant fluids and electrolytes, making rehydration the most critical first step. Before attempting to eat solid food, it is important to rest the stomach and focus on replenishing lost fluids. Taking small, frequent sips is better than drinking large quantities at once, which could trigger vomiting.

Oral Rehydration Solutions (ORS)

For effective rehydration, especially in cases of significant fluid loss, oral rehydration solutions are the gold standard. These specialized drinks contain the optimal balance of water, glucose, and electrolytes (sodium and potassium) to facilitate absorption and restore balance. Commercial options like Pedialyte or Naturalyte are effective for both adults and children. While many sports drinks contain electrolytes, some have excessive sugar, which can worsen diarrhea.

Other Clear Liquid Options

Once the worst symptoms have passed, other clear liquids can be introduced to aid hydration and provide some nutrients. Excellent choices include:

  • Clear broths (chicken or vegetable) to replace sodium.
  • Weak, decaffeinated tea (like ginger or peppermint, which may help with nausea).
  • Coconut water (without added sugar) for electrolytes.
  • Plain water.

The Role of Bland Foods in Soothing Your Stomach

After successfully rehydrating for a period, you can gradually reintroduce bland, easy-to-digest foods. The traditional BRAT diet is a well-known approach, but modern advice supports a more varied bland diet to ensure better nutrient intake.

The BRAT Diet

For decades, the BRAT diet has been recommended for upset stomachs because its constituent foods are low in fiber and gentle on the digestive system.

  • Bananas: Rich in potassium and pectin, which help firm up stool.
  • Rice: Plain white rice is easy to digest.
  • Applesauce: Cooked apples are easier to digest than raw ones and contain pectin.
  • Toast: Plain, dry toast made from white bread is a low-fiber option.

Beyond BRAT: A More Comprehensive Bland Diet

To ensure more balanced nutrition, you can incorporate other bland foods as tolerated:

  • Refined Grains: Oatmeal, cream of wheat, plain pasta, and saltine crackers.
  • Lean Proteins: Skinless, baked or boiled chicken or turkey, and scrambled eggs prepared with minimal fat.
  • Cooked Vegetables: Plain, boiled or steamed vegetables like carrots, potatoes (without skin), and green beans.
  • Probiotics: Some low-fat yogurt and kefir may help restore beneficial gut bacteria, but reintroduce dairy slowly as temporary lactose intolerance can occur.

Foods and Drinks to Avoid

Certain foods can exacerbate diarrhea symptoms and should be avoided until full recovery.

  • Dairy Products: Excluding some probiotic-rich options, most milk products can be difficult to digest and may cause temporary lactose intolerance.
  • Fatty and Fried Foods: These are hard to digest and can aggravate symptoms.
  • Spicy Foods: Irritate the digestive tract and should be avoided.
  • Caffeine and Alcohol: Both are diuretics and can worsen dehydration.
  • High-Sugar Foods and Drinks: Excessive sugar can draw water into the intestines and worsen diarrhea. This includes sugary fruit juices, candy, and sodas.
  • High-Fiber Foods: Raw fruits, vegetables, nuts, and whole grains should be limited initially to reduce bowel stimulation.
  • Artificial Sweeteners: Sugar alcohols like sorbitol and mannitol can have a laxative effect.

A Quick Comparison: What to Eat vs. What to Avoid

Foods to Eat Foods to Avoid
Water, oral rehydration solutions Caffeine, alcohol, sugary drinks
Clear broths and soups High-fat, fried, and greasy foods
Bananas, cooked applesauce Raw fruits (especially berries and citrus)
Plain white rice, white toast High-fiber foods (whole grains, raw vegetables)
Boiled potatoes, cooked carrots Dairy products (except certain yogurts/kefir)
Lean poultry (skinless chicken/turkey) Spicy foods, processed meats
Scrambled eggs Artificial sweeteners
Saltine crackers, plain cereals Nuts, seeds, corn, beans

Gradual Return to a Normal Diet

As your symptoms improve, you can slowly transition back to your regular eating habits. A good strategy is to start by reintroducing one new food at a time to see how your body reacts. If you experience a return of symptoms, you can revert to the bland diet for a short period before trying again. Listen to your body and don't rush the process, as the digestive system needs time to heal. Most people make a full recovery in a few days with proper care.

Conclusion

Effectively managing your diet is a key component of a speedy recovery from viral diarrhea. By focusing on rehydration with electrolyte solutions, introducing bland, easily digestible foods like those found in the BRAT diet, and avoiding irritants, you can give your body the best chance to heal. A gradual return to your normal diet, while monitoring for any adverse reactions, will help ensure your digestive health is fully restored. Remember to consult a healthcare professional for advice, especially if symptoms are severe or persistent.

Important Information

For more detailed information on managing viral gastroenteritis, including treatment options, you can visit the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) website [https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/eating-diet-nutrition].

Frequently Asked Questions

Oral rehydration solutions (ORS), such as Pedialyte or Naturalyte, are the best choice because they contain the optimal balance of water, glucose, and electrolytes to help the body rehydrate efficiently.

Yes, the BRAT diet is still a valid starting point for introducing bland foods. However, modern advice suggests incorporating a wider range of easily digestible foods as tolerated to ensure better nutrition for a faster recovery.

Most dairy products should be avoided initially, as the intestinal inflammation from viral gastroenteritis can cause temporary lactose intolerance. However, some probiotic-rich dairy like low-fat yogurt or kefir can be introduced slowly.

You should limit high-fiber foods like whole grains, nuts, and raw vegetables at the onset of diarrhea. The soluble fiber in bland foods like bananas and cooked applesauce, however, can help firm stool.

After tolerating bland foods for a day or two, you can start to gradually reintroduce your normal diet. Monitor your body's reaction and slow down if symptoms return. Most people can resume a normal diet within a few days.

Some sports drinks can be helpful for replacing electrolytes, but many contain high amounts of sugar which can worsen diarrhea. Lower-sugar electrolyte-enhanced waters or coconut water are better alternatives.

You should avoid fatty and fried foods, spicy foods, caffeine, alcohol, excessive sugar, artificial sweeteners, and most high-fiber and dairy products until you feel better.

References

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Medical Disclaimer

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