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What Should You Avoid After Gastroenteritis?

3 min read

According to the Centers for Disease Control and Prevention (CDC), norovirus is the most common cause of acute gastroenteritis in the United States, leading to about 19 to 21 million cases annually. For those recovering from this unpleasant stomach illness, knowing what should you avoid after gastroenteritis is crucial for a smooth and swift return to normal health.

Quick Summary

Recovering from a stomach bug requires a period of avoiding irritants to allow the gut to heal. This involves sidestepping high-fat, spicy, and sugary foods, as well as alcohol and caffeine. Adopting a bland diet and reintroducing items slowly is key to preventing a relapse of symptoms and supporting a full recovery.

Key Points

  • Avoid High-Fat and Fried Foods: These are hard to digest and can restart uncomfortable symptoms like diarrhea and nausea.

  • Steer Clear of Dairy: Many people develop temporary lactose intolerance after gastroenteritis, so dairy products can cause gas, bloating, and diarrhea.

  • Limit Spicy and Sugary Items: Spicy and acidic foods irritate the gut, while sugary drinks can make diarrhea worse by drawing water into the intestines.

  • Eliminate Alcohol and Caffeine: Both can dehydrate and irritate your stomach, prolonging your recovery.

  • Prioritize Rest: Your body needs energy to heal. Avoid strenuous activity and get plenty of rest to speed up recovery.

  • Reintroduce Foods Slowly: Gradually ease back into your normal diet, starting with bland foods like those found in the BRAT diet (bananas, rice, applesauce, toast).

In This Article

Avoiding Foods That Irritate Your Gut

After a bout of gastroenteritis, your digestive system is in a delicate state. The lining of your stomach and intestines is inflamed and sensitive, making it easy to aggravate with the wrong foods. To promote healing and prevent a return of symptoms like nausea and diarrhea, a bland and gentle diet is recommended while certain items should be strictly avoided.

High-Fat and Fried Foods

Fatty and fried foods are notoriously difficult for the body to digest, even for a healthy stomach. After gastroenteritis, your digestive enzymes are not functioning at their peak, and your gut motility may be altered. Consuming these heavy, greasy foods places a significant burden on your recovering system, which can trigger renewed symptoms such as nausea, abdominal cramping, and diarrhea. This includes items like:

  • Fast food (burgers, fries)
  • Processed meats (sausages, bacon)
  • Pastries and cakes
  • Chips and other deep-fried snacks

Dairy Products

During and after gastroenteritis, many individuals experience a temporary intolerance to lactose, the sugar found in milk and other dairy products. This is because the illness can damage the lining of the small intestine, which contains the enzyme lactase responsible for breaking down lactose. Consuming milk, cheese, and ice cream can lead to increased gas, bloating, and diarrhea. For this reason, it is best to avoid dairy for several days or even a week after symptoms subside, and reintroduce it slowly to see how your body reacts.

Spicy and Highly Seasoned Foods

Just as fatty foods can be irritating, so too can highly spiced and seasoned foods. Chili, hot sauce, and other pungent spices can stimulate an already-inflamed gut lining. This can lead to intensified stomach cramps, heartburn, and diarrhea, as your digestive system is not yet prepared to handle such irritants. Stick to simple, unseasoned foods to give your stomach a break.

Beverages and Habits to Avoid

Beyond food, certain drinks and lifestyle habits can also hinder recovery and must be avoided to feel better quickly.

Alcoholic and Caffeinated Drinks

Both alcohol and caffeine have a stimulating effect on the digestive tract, which can exacerbate diarrhea and abdominal discomfort. Alcohol is also a diuretic, which worsens dehydration, a major concern during recovery from gastroenteritis. Caffeine can increase stomach acid, which can cause heartburn and further upset. Stick to water, herbal tea, and oral rehydration solutions to stay properly hydrated.

Sugary and Acidic Drinks

Sweetened drinks, including sugary fruit juices and soda, should be avoided as they can draw water into the intestines and worsen diarrhea. Likewise, the acid in citrus fruits and tomatoes can be harsh on a sensitive stomach, so it's best to steer clear of these for a while.

Physical Exertion

While it may feel tempting to return to your normal routine, your body needs time to rest and recover. Physical exertion and strenuous exercise can put unnecessary stress on your system, delaying the healing process. Getting plenty of rest is one of the most important things you can do to help your body bounce back.

Food Reintroduction Comparison

Food Group Foods to Avoid (Initial Recovery) Foods to Reintroduce (After 2-3 Days) Notes
Dairy Milk, cheese, ice cream, butter Plain yogurt, small amounts of aged cheese Reintroduce slowly due to potential temporary lactose intolerance.
Fats Fried foods, fatty cuts of meat, heavy sauces Lean protein (chicken, fish), steamed vegetables Focus on easily digestible sources of protein and nutrients.
Spices Chili, curry, hot sauce, black pepper Mild herbs (parsley, basil), a pinch of salt Overly spicy food can irritate the sensitive gut lining.
Sugars Soda, candy, sugary juices, pastries Bananas, applesauce (BRAT diet) Simple sugars can worsen diarrhea.
Fiber Raw vegetables, whole grains, beans Cooked vegetables, white rice, toast High-fiber foods can be difficult to digest initially.

Conclusion: The Path to a Full Recovery

The key to a speedy recovery after gastroenteritis is to be patient and gentle with your digestive system. By understanding what you should avoid after gastroenteritis, you can prevent setbacks and provide your body with the optimal environment for healing. Start with clear fluids, gradually introduce bland, easy-to-digest foods, and avoid all common irritants, including fatty, spicy, and sugary items, as well as caffeine and alcohol. A slow and steady approach ensures that your gut has the time it needs to recover completely. For more information on dietary management during and after illnesses, consult your healthcare provider or a trusted resource like the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).

Frequently Asked Questions

You can typically start to reintroduce your normal diet gradually after you have been able to tolerate bland foods for a day or two and your symptoms have subsided. Everyone's recovery is different, so listen to your body and add foods back slowly over several days to a week.

It is generally best to avoid dairy products immediately after a stomach bug, as many people experience temporary lactose intolerance. Reintroduce them slowly and in small amounts to see if they cause any discomfort.

Greasy and fried foods are difficult for a sensitive stomach to digest. They can irritate the gut lining and trigger a relapse of nausea, cramping, and diarrhea.

No, you should avoid both caffeine and carbonated, sugary drinks. Caffeine stimulates the gut and can worsen diarrhea, while sugary sodas can draw water into the intestines, also making diarrhea worse.

Spicy foods can act as an irritant to your already sensitive and inflamed gut lining, potentially causing renewed stomach cramps and discomfort.

Yes, resting is very important. The illness and dehydration can leave you weak and tired, so getting plenty of rest allows your body to dedicate its energy to healing.

Focus on clear liquids like water, clear broths, and oral rehydration solutions. These help replace lost fluids and electrolytes without irritating your digestive system.

Medical Disclaimer

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