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Home > Nutrition > Foods to Avoid When You Have Diarrhea

Foods to Avoid When You Have Diarrhea

August 28, 2020 - Updated on August 6, 2021
5 min read
By Rebecca Goodrich-Daoud, MS, RDN, LDN | Registered Dietitian

In this article:

  • The Prevalence of Gastrointestinal Issues
  • Common Causes of Diarrhea
  • Main Symptoms of Diarrhea
  • Best Treatment Plan for Diarrhea
  • Recommended Dietary Changes to Relieve Diarrhea
  • Foods to Avoid During Diarrhea
  • Fructose-Rich Foods Can Trigger Diarrhea
  • Food Allergies and Diarrhea
  • Final Word

How many times have you asked yourself, what’s that noise my stomach is making, or will this meal cause a flare?

foods to avoid in diarrhea

While digestive issues are very common, it is important that you understand the root cause of these symptoms. One very common digestive issue is diarrhea.

Diarrhea is defined as having three or more loose/watery stools per day. (1)

The Prevalence of Gastrointestinal Issues

One study suggested that gastrointestinal (GI) symptoms are highly prevalent and extremely common in the United States. (2) GI symptoms are so common that out of 71,812 individuals studied, 61% of these individuals had at least one or more GI symptoms in the past week. (2)

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Common Causes of Diarrhea

Some common causes of diarrhea may include:

  • Functional bowel disorders such as irritable bowel syndrome
  • Inflammatory bowel diseases
  • Malabsorption
  • Celiac disease
  • Gastroenteritis

Main Symptoms of Diarrhea

symptoms associated with diarrhea

Some common symptoms of diarrhea may include:

  • Increased frequency of bowel movements
  • Increased stool volume
  • Unformed stool
  • Abdominal pain
  • Incontinence
  • Bloating

Diarrhea may often be accompanied by:

  • Fever
  • Chills
  • Weight loss
  • Nausea
  • Vomiting

Best Treatment Plan for Diarrhea

treatment plan for diarrhea

While most cases of diarrhea resolve on their own, the following tips may aid recovery:

  • It is important to rehydrate yourself with water and electrolytes from the loss of these items in the stool. If diarrhea is severe, IV fluid hydration may become necessary for treatment. 
  • Certain fiber supplements, such as psyllium husk, may help with firming loose stools. Psyllium husk is a soluble, non-fermented gel-forming fiber. (3)
  • Consuming foods that are high in fiber can help in making stools firm. 
  • A typical diet that may be beneficial with stool formation that is sometimes used in the clinical setting is a bland “BRAT diet.” The BRAT diet consists of bananas, rice, applesauce, and toast. (1)

Recommended Dietary Changes to Relieve Diarrhea

No single food causes diarrhea in all people. Instead, an underlying condition may be causing diarrhea.

For a person who has been diagnosed with irritable bowel syndrome (IBS-D), consuming a short-term, low-FODMAP diet may be helpful in alleviating abdominal pain and diarrhea. (4)

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Foods to Avoid During Diarrhea

foods to avoid when suffering from diarrhea

If the cause of diarrhea is unknown, perhaps limiting certain foods for a short period may be helpful:

1. Milk

Milk and other dairy products contain lactose that can irritate the gut and aggravate diarrhea.

2. Hot peppers

Spicy foods can stimulate the production of stomach acid and, therefore can cause irritation.

3. Alcohol and coffee

Caffeine activates the sympathetic nervous system, often causing GI issues such as diarrhea. Moreover, alcohol and coffee increase the risk of dehydration during diarrhea.

4. High-fiber foods

Foods such as legumes, cruciferous vegetables, and nuts have a high fiber content, which can further irritate the intestines during diarrhea due to improper digestion.

5. Sugar substitutes

Sugar substitutes stimulate the overproduction of electrolytes and water, which causes loose bowel movements and, thus, diarrhea. (5)

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6. Red meat

Red meat has high fat content, which aggravates diarrhea symptoms.

7. Citrus fruits

The acidity of citrus fruits, such as limes, oranges, lemons, and grapefruits, can irritate the stomach lining and cause diarrhea.

Fructose-Rich Foods Can Trigger Diarrhea

Some foods that increase the transit time in most individuals are foods that are high in fructose.

Fructose is absorbed slowly and when consumed in excess, it is not sufficiently absorbed in most individuals, which may cause gas, bloating, or diarrhea. (6) Foods that contain high amounts of fructose include honey, apple, mango, some dried fruits, and asparagus. 

Food Allergies and Diarrhea

Certain food intolerances, such as lactose intolerance (predominately coming from dairy products such as certain cheeses and milk), may contribute to watery diarrhea, bloating, and flatulence.

It may be helpful to test for lactose intolerance and to continue following up with your doctor in the future since tolerance may change.

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Final Word

Diarrhea and other GI conditions are very common in the United States. If you are suffering from any concerning GI condition, make sure to speak with your physician to identify the root cause.

Once determined, it is recommended to speak with a registered dietitian so that they can prescribe a diet that best fits your needs and helps alleviate the symptoms associated with diarrhea.

References
  1. Nemeth V. Diarrhea. StatPearls [Internet]. https://www.ncbi.nlm.nih.gov/books/NBK448082/. Published July 19, 2020.
  2. Almario CV; Ballal ML; Chey WD; Nordstrom C; Khanna D; Spiegel BMR; Burden of Gastrointestinal Symptoms in the United States: Results of a Nationally Representative Survey of Over 71,000 Americans. The American journal of gastroenterology. https://pubmed.ncbi.nlm.nih.gov/30323268/.
  3. McRorie JW. Evidence-Based Approach to Fiber Supplements and Clinically Meaningful Health Benefits, Part 1: What to Look for and How to Recommend an Effective Fiber Therapy. Nutrition today. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4415962/. Published March 2015.
  4. Capili B, Anastasi JK, Chang M. Addressing the Role of Food in Irritable Bowel Syndrome Symptom Management. The journal for nurse practitioners: JNP. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4944381/. Published May 2016.
  5. Mäkinen KK. Gastrointestinal Disturbances Associated with the Consumption of Sugar Alcohols with Special Consideration of Xylitol: Scientific Review and Instructions for Dentists and Other Health-Care Professionals. International journal of dentistry. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5093271/. Published 2016.
  6. DiNicolantonio JJ, Lucan SC. Is fructose malabsorption a cause of irritable bowel syndrome? Medical hypotheses. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4729202/. Published September 2015.

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