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Is it OK to eat yogurt with stomach flu?

4 min read

During a bout of stomach flu, a recent study indicates that certain probiotic strains can help reduce the duration of diarrhea. This raises the question: is it OK to eat yogurt with stomach flu? The answer depends on the type of yogurt and your specific symptoms.

Quick Summary

Some plain, low-fat yogurts with live active cultures can be cautiously beneficial during stomach flu due to their probiotic content, which may help restore gut balance. Other dairy products should generally be avoided during initial sickness.

Key Points

  • Probiotics are Key: Plain yogurt with live cultures may help restore the beneficial bacteria in your gut that are depleted by stomach flu.

  • Choose Plain and Low-Sugar: Opt for unsweetened Greek or regular yogurt. High-sugar and high-fat content in many yogurts can aggravate diarrhea.

  • Introduce Gradually: Wait until severe vomiting and diarrhea have subsided before trying a small amount of yogurt to see how your body tolerates it.

  • Beware of Lactose Intolerance: Viral gastroenteritis can temporarily increase lactose sensitivity. A lactose-free or non-dairy probiotic yogurt is a safe alternative if you are sensitive.

  • Hydration is Paramount: Before reintroducing solid foods, focus on staying hydrated with clear liquids like water and electrolyte drinks.

  • Combine with Bland Foods: Integrate yogurt with other easy-to-digest foods like those from the BRAT diet (Bananas, Rice, Applesauce, Toast).

  • Avoid Other Dairy: Until you are fully recovered, it is best to avoid milk, cheese, and ice cream, which are harder to digest.

In This Article

When dealing with the unpleasant symptoms of stomach flu, also known as viral gastroenteritis, finding foods that won't aggravate your condition is a top priority. The standard advice is often to avoid most dairy products, as the lactose can be difficult to digest when your gut is inflamed. However, the case of yogurt is different, thanks to its unique probiotic content. While some caution is necessary, plain yogurt with live, active cultures can play a beneficial role in your recovery. The key is knowing what kind to choose and when to eat it.

The Role of Probiotics in Recovery

The stomach flu can wreak havoc on your digestive system, causing an imbalance in the natural ecosystem of bacteria living in your gut. Probiotics are beneficial microorganisms that can help restore this balance, which is essential for healthy digestion and a strong immune system.

  • Restoring Gut Flora: Diarrhea and vomiting can deplete your gut of its beneficial bacteria. By introducing new, healthy bacteria through plain, probiotic-rich yogurt, you can help re-establish a healthy intestinal flora.
  • Shortening Diarrhea Duration: Some research suggests that specific probiotic strains, such as Lactobacillus rhamnosus GG and Saccharomyces boulardii, may help shorten the duration of infectious diarrhea.
  • Supporting the Immune System: A healthy gut microbiome is directly linked to a robust immune system. Introducing probiotics can support your body as it fights off the viral infection.

Why the Right Yogurt Matters

Not all yogurt is created equal, especially when your stomach is sensitive. Many commercial yogurts are packed with sugar, which can actually worsen diarrhea by drawing more water into your intestines. The high fat content in full-fat or flavored varieties can also be difficult to digest. Therefore, the best choice is plain, unsweetened Greek or regular yogurt with a label that explicitly states it contains "live and active cultures". A lactose-free or non-dairy probiotic yogurt is an excellent option for those with lactose sensitivity.

When and How to Introduce Yogurt

The timing of reintroducing food, including yogurt, is crucial. During the most acute phase of the stomach flu, when vomiting and diarrhea are frequent, your priority should be staying hydrated with clear liquids like water, electrolyte drinks, or broth. Once the vomiting has stopped and your appetite starts to return, you can begin to introduce bland, easy-to-digest foods.

Start with a very small amount, perhaps just a few spoonfuls of plain yogurt, to gauge your body's reaction. If you tolerate it well, you can gradually increase the portion size. It is important to listen to your body; if you feel any renewed nausea or discomfort, stop and return to clear liquids for a while longer.

Yogurt vs. Other Dairy: A Comparison Table

To better understand why plain yogurt is often the exception to the dairy rule during stomach flu, here is a comparison:

Feature Plain Probiotic Yogurt Milk, Cheese, and Ice Cream
Probiotic Content Contains live, beneficial bacteria that may help restore gut health. Generally lacks probiotics, or cultures are inactive in processed products.
Lactose Content Lactic acid bacteria break down some lactose, making it easier to digest. High in lactose, which can be hard to digest for inflamed guts.
Fat Content Choose low-fat or non-fat varieties to be gentler on the stomach. Can be high in fat, which can aggravate symptoms like nausea and diarrhea.
Sugar Content Opt for unsweetened types; excess sugar can worsen diarrhea. Flavored varieties are often very high in sugar, which is detrimental to recovery.
Recommended Use Can be introduced in small amounts during recovery phase. Best to avoid entirely until fully recovered.

A Broader Recovery Diet

Yogurt is just one piece of the puzzle for a recovery diet. It's often combined with foods from the classic BRAT diet, which stands for Bananas, Rice, Applesauce, and Toast. These foods are low in fiber, easy to digest, and can help bind stools. Other suitable foods include clear broths, cooked carrots, and steamed potatoes.

  • Stay Hydrated: This cannot be stressed enough. Small, frequent sips of water, coconut water, or electrolyte-rich drinks are vital to replace fluids lost through vomiting and diarrhea.
  • Gradual Reintroduction: As you continue to recover, you can slowly reintroduce other low-fat, easy-to-digest foods like lean proteins (boiled chicken or eggs) and cooked vegetables.
  • Foods to Avoid: Steer clear of anything that might irritate your recovering digestive system. This includes spicy foods, fatty or greasy foods, high-sugar drinks and snacks, caffeine, and alcohol.

Conclusion

While the general rule of thumb during a stomach flu is to avoid dairy, plain, unsweetened yogurt with live and active cultures is a notable exception. Its probiotic content can be beneficial for restoring your gut's healthy bacteria and potentially shortening the duration of diarrhea. The key is to wait for the worst symptoms to pass, choose the right type of yogurt, and introduce it slowly alongside other bland foods. Always prioritize hydration and listen to your body. By being mindful of your dietary choices, you can provide your digestive system with the support it needs to recover. For additional guidance on dietary management during viral gastroenteritis, resources from reputable health organizations, such as the National Institutes of Health, can be highly beneficial.

Frequently Asked Questions

Plain, unsweetened Greek or regular yogurt with live and active cultures is recommended. Look for brands with probiotic strains like Lactobacillus rhamnosus GG or Saccharomyces boulardii.

It is best to wait until the most severe symptoms, especially vomiting, have passed. Start with a very small portion, like a few spoonfuls, to test your tolerance before increasing the amount.

While most dairy products like milk, cheese, and ice cream should be avoided due to their fat and lactose content, plain probiotic yogurt is an exception. However, if you are lactose intolerant, stick to lactose-free or non-dairy probiotic options.

No, yogurt is not a cure. The probiotics may help shorten the duration of symptoms like diarrhea by supporting your gut's natural bacterial balance, but they do not eliminate the virus causing the flu.

Research suggests that strains like Saccharomyces boulardii and Lactobacillus rhamnosus GG may be beneficial for managing diarrhea associated with gastroenteritis.

If you find that yogurt worsens your symptoms, stop eating it immediately. This may indicate a temporary lactose intolerance or sensitivity. In this case, focus on other bland foods and hydration instead.

Yes, if you are lactose intolerant or sensitive to dairy, a non-dairy yogurt made from soy, almond, or coconut milk that contains added live and active probiotic cultures is a suitable and beneficial alternative.

References

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Medical Disclaimer

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