The BRAT Diet Revisited: Can Green Bananas Help with Diarrhea?

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Diarrhea is a common gastrointestinal issue characterized by loose, watery stools and increased frequency of bowel movements. It can be caused by various factors, such as viral or bacterial infections, food intolerances, or certain medications. When facing diarrhea, many individuals seek relief through dietary adjustments. One popular recommendation is the BRAT diet, which includes bananas as one of its main components. In this article, we will explore whether bananas can indeed provide relief for diarrhea and the scientific evidence supporting this claim.

The BRAT Diet and Bananas

The BRAT diet stands for Bananas, Rice, Applesauce, and Toast. Historically, it has been recommended for individuals suffering from diarrhea due to its bland and easily digestible nature. The rationale behind incorporating bananas into this diet lies in their nutritional composition and potential benefits for gastrointestinal health.

Nutritional Benefits of Bananas

Bananas are rich in essential nutrients that can support digestive health, even during episodes of diarrhea:

  1. Potassium: Bananas are an excellent source of potassium, an electrolyte that plays a crucial role in maintaining fluid balance in the body. During diarrhea, the body can lose significant amounts of water and electrolytes, and bananas can help replenish potassium levels.
  2. Soluble Fiber: Bananas contain soluble fiber, such as pectin, which can help absorb excess water in the intestines and add bulk to stools, potentially reducing the severity of diarrhea.
  3. Natural Sugars: Bananas are high in natural sugars, including fructose and glucose, which can provide a quick and easily digestible source of energy when dealing with diarrhea-induced fatigue.

Potential Benefits of Bananas for Diarrhea Relief

  1. Replenishing Nutrient Loss: Diarrhea can lead to nutrient depletion and electrolyte imbalances in the body. Consuming bananas during diarrhea can help replenish potassium and other essential nutrients, supporting overall well-being.
  2. Mild Binding Effect: The soluble fiber content in bananas can have a mild binding effect on loose stools, potentially reducing the frequency of bowel movements.
  3. Gentle on the Stomach: Bananas are considered gentle on the stomach and easy to digest, making them a suitable choice for people with sensitive digestive systems during diarrhea.

Scientific Evidence on Bananas and Diarrhea

While the BRAT diet, including bananas, has been widely recommended for diarrhea, there is limited scientific research specifically focusing on the effect of bananas alone on diarrhea relief. However, several studies have investigated the BRAT diet’s overall efficacy in managing diarrhea:

  1. A study published in the American Journal of Diseases of Children in 1990 found that children who followed the BRAT diet experienced a decrease in stool frequency and consistency compared to a control group. However, the study did not isolate the effects of bananas.
  2. A review of dietary management for acute diarrhea in children, published in the World Journal of Gastroenterology in 2016, indicated that the BRAT diet might help reduce the duration and severity of diarrhea in young children.
  3. An updated recommendation from the American Academy of Pediatrics in 2018 states that while the BRAT diet was once widely used, there is no strong evidence supporting its exclusive use. Instead, they advise a more balanced approach with a focus on maintaining hydration and reintroducing a regular diet as tolerated.


Bananas are a nutritious fruit that can potentially provide some relief for diarrhea due to their rich nutrient content, mild binding effect, and gentle impact on the stomach. Incorporating bananas into the BRAT diet, along with other easily digestible foods, may help manage diarrhea symptoms and replenish essential nutrients lost during the episode. However, it’s important to recognize that the BRAT diet is not a cure for diarrhea, and it may not be sufficient for complete recovery or appropriate for all cases.

In cases of persistent or severe diarrhea, it is essential to consult a healthcare professional for a comprehensive evaluation and appropriate treatment. Additionally, maintaining proper hydration by consuming oral rehydration solutions or electrolyte-rich fluids is crucial during episodes of diarrhea to prevent dehydration. Always listen to your body’s signals and adjust your diet based on individual responses to food choices during diarrhea and its recovery phase.

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