The Misconception of 'Flushing Out' Diarrhea
When experiencing diarrhea, the body is already working to expel toxins or pathogens. The term 'flush out' can be misleading as it suggests an aggressive approach to cleanse the system. In reality, the body is already rapidly losing fluids and electrolytes. Attempting to force a 'flush' by drinking too much plain water or other inappropriate fluids can worsen the critical electrolyte imbalance. The correct strategy is gentle rehydration with a balanced fluid that helps the intestines absorb water and nutrients more effectively.
The Best Drinks for Rehydration
Replenishing lost fluids and electrolytes is paramount for recovery. Several drinks are highly effective while also being gentle on a sensitive digestive system. The key is to sip fluids slowly and consistently throughout the day, especially after each loose bowel movement.
- Oral Rehydration Solutions (ORS): Commercially available products like Pedialyte or Enfalyte contain the ideal balance of water, sugar, and salts to maximize absorption and prevent dehydration. They are especially recommended for children and older adults who are more vulnerable to dehydration.
- Water: Plain water is the most accessible fluid and is perfectly suitable for rehydration. However, for more severe cases involving significant electrolyte loss, it should be supplemented with other, more mineral-rich fluids.
- Broth: Clear broths, such as chicken, beef, or vegetable, are excellent for replacing lost sodium. The warmth can also be soothing to the stomach.
- Rice Water: This simple, starchy solution can help firm up stools. To make it, boil 1 cup of white rice in 2 cups of water for about 10 minutes until the water becomes cloudy, then strain and sip the cooled liquid. Some studies have suggested that rice water may be more effective than electrolyte solutions in some cases.
- Weak Herbal Tea: Decaffeinated, gentle teas like ginger, chamomile, or peppermint can help soothe an upset stomach. Ensure the tea is not too hot before drinking.
- Diluted, Pulp-Free Juice: Some fruit juices, like apple juice, can help replace potassium, but they should be diluted with water to avoid adding too much sugar, which can worsen diarrhea. Ensure it is pulp-free to reduce fiber content.
Drinks to Avoid During Diarrhea
Just as certain fluids help recovery, others can exacerbate symptoms and should be avoided or limited. These drinks can irritate the gut, act as a laxative, or contribute to dehydration.
- Caffeinated Drinks: Coffee, some teas, and energy drinks act as stimulants and can increase bowel motility, worsening diarrhea.
- Alcohol: Alcohol contributes to dehydration and can irritate the intestinal tract, intensifying symptoms like nausea.
- High-Sugar Beverages: High-fructose fruit juices, soda, and very sweet sports drinks can draw fluid into the intestines, leading to more frequent or watery stools.
- Dairy Products: Diarrhea can cause temporary lactose intolerance, so milk, cheese, and ice cream may worsen symptoms. Probiotic-rich yogurt or kefir may be tolerated, but should be introduced slowly.
- Very Hot or Cold Liquids: Consuming drinks at extreme temperatures can be shocking to a sensitive digestive system and may trigger further nausea.
Rehydrating for Diarrhea: A Comparison
| Fluid Type | Best For | What It Does | Important Notes |
|---|---|---|---|
| Oral Rehydration Solution (ORS) | Replenishing electrolytes quickly. | Contains precise balance of sugar and salt for optimal fluid absorption. | Best choice for significant fluid loss, especially in children and older adults. |
| Clear Broth | Replacing lost sodium. | Provides sodium and is easy to digest. | Avoid greasy broths; can be combined with other liquids. |
| Water | Basic hydration. | Replaces lost fluid without additives. | Insufficient for severe dehydration; needs pairing with electrolytes. |
| Weak Herbal Tea | Soothing upset stomach. | Calming herbs like ginger or chamomile can ease nausea and cramps. | Must be decaffeinated and served at room temperature. |
| Diluted Fruit Juice | Replenishing potassium. | Provides potassium and adds a different flavor. | Must be diluted and pulp-free to prevent worsening symptoms. |
Beyond Hydration: Supporting Your Diet
For the first 24 hours, focusing primarily on fluids is often best to allow the digestive system to rest. Once you feel ready to introduce food, start with small, bland portions. The BRAT diet (Bananas, Rice, Applesauce, Toast) consists of binding, low-fiber foods that are easy on the stomach. While helpful for a short time, it lacks sufficient nutrients for long-term recovery. It's best to expand the diet as soon as possible to include other bland foods, such as cooked chicken, lean meat, eggs, and cooked vegetables, to prevent nutrient deficiencies.
When to Seek Medical Help
While most cases of diarrhea resolve on their own with proper hydration and rest, certain symptoms should prompt a call to your doctor. Seek immediate medical attention if you or your child experience:
- Signs of severe dehydration, such as dry mouth, dizziness, dark urine, or infrequent urination.
- A fever over 102°F (39°C).
- Diarrhea lasting more than two days without improvement.
- Severe abdominal or rectal pain.
- Bloody or black stools.
- In infants, no wet diapers in 3+ hours or crying without tears.
Conclusion
While the impulse may be to find what to drink to flush out diarrhea, the correct nutritional approach is focused on careful, continuous rehydration and electrolyte replenishment. Prioritizing plain water, ORS, and broth while avoiding aggravating drinks like caffeine and high-sugar juices is the safest path to recovery. Remember to listen to your body, introduce bland foods slowly, and know the warning signs that indicate a need for professional medical attention.
For more detailed information on nutrition during digestive illnesses, you can visit the International Foundation for Gastrointestinal Disorders (IFFGD).
