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Why do bananas help when sick? The soothing truth

4 min read

According to the U.S. Department of Agriculture, a single medium banana provides 422 milligrams of potassium, a key electrolyte lost during sickness. The simple answer to why do bananas help when sick lies in their soft texture, balanced nutrients, and restorative properties, which offer gentle relief for a weakened body.

Quick Summary

Bananas offer restorative benefits for illness by replenishing lost electrolytes, soothing the digestive tract, and providing easily digestible energy. They are a staple of the BRAT diet, helping to firm up stool and alleviate nausea and vomiting, while also providing crucial vitamins and minerals for recovery.

Key Points

  • Electrolyte Restoration: Bananas are rich in potassium, an essential electrolyte that helps restore the body's fluid balance, especially after episodes of vomiting or diarrhea.

  • Digestive Comfort: Their bland, soft texture makes bananas easy to digest, which is ideal for a sensitive or upset stomach and can help alleviate nausea and prevent heartburn.

  • Immune Support: A decent source of vitamins like C and B6, bananas provide antioxidants and bolster the immune system, aiding the body in fighting off infections.

  • Soothing a Sore Throat: The mushy, non-acidic nature of bananas makes them a soothing food that is easy to swallow without irritating an inflamed throat.

  • Energy Boost: As a source of fast-acting carbohydrates, bananas provide a much-needed energy boost for a body feeling fatigued by illness.

  • BRAT Diet Staple: Bananas are a core component of the BRAT diet, which is traditionally recommended for recovering from gastrointestinal issues due to their binding properties.

  • Potential Antiviral Properties: Some research suggests that a protein in bananas, BanLec, may have antiviral properties, though more human studies are needed.

In This Article

Gentle on the Stomach, Powerful for Recovery

When your body is fighting an illness, your digestive system is often one of the first things affected. Appetites diminish, and the thought of eating can cause more discomfort. Bananas are a gentle and effective solution, and their inclusion in the classic BRAT (Bananas, Rice, Applesauce, Toast) diet for stomach ailments is no accident. The soft texture of ripe bananas is easy to swallow and gentle on a sensitive stomach lining, while their naturally bland taste is unlikely to trigger nausea. This makes them an ideal source of calories and energy when more complex foods are too difficult to tolerate.

Replenishing Vital Electrolytes

Sickness, particularly when accompanied by fever, sweating, vomiting, or diarrhea, can quickly deplete the body's store of essential minerals known as electrolytes. Potassium, a crucial electrolyte for maintaining fluid balance, nerve function, and muscle contraction, is abundant in bananas. By consuming bananas, you can help restore these depleted electrolyte levels, preventing further dehydration and weakness. This is especially important for children and older adults who are more susceptible to the effects of electrolyte loss.

Supporting the Immune System

Beyond their digestive and electrolyte benefits, bananas contain a number of nutrients that contribute to a healthy immune response. A medium banana provides a healthy dose of vitamin C, an antioxidant that helps protect the body from free radical damage and supports immune function. They also contain vitamin B6 and magnesium, both of which are important for overall metabolic and immune system health. While no single food can cure an illness, providing your body with these nutrients helps give it the resources it needs to fight back and recover more quickly.

Soothing a Sore Throat

For those suffering from a sore throat, swallowing can be painful. The smooth, mushy consistency of a ripe banana or a banana smoothie is a welcome relief compared to rough or dry foods. Bananas are also non-acidic, which means they won't irritate an already inflamed throat, unlike more acidic fruits such as oranges or pineapple. In fact, bananas are rich in pectin, a soluble fiber that can help reduce excess acid in the stomach, which can sometimes be a cause of a sore throat.

The Antiviral Potential

Research has identified a protein in bananas called BanLec (Banana Lectin), which has shown promise in studies for its ability to combat certain viruses by preventing them from entering cells. While further human studies are needed, this discovery points to a potential antiviral property that could be beneficial when fighting off infections like colds and flu.

Ripe vs. Unripe Bananas for Sickness

Choosing the right ripeness can maximize the benefits, depending on your symptoms.

Feature Ripe Banana (Yellow with spots) Unripe Banana (Green)
Carbohydrates Higher natural sugars; provides quick energy. High in resistant starch, which acts more like fiber.
Digestion Very easy to digest; gentle on the stomach. Harder to digest, potentially causing bloating for some.
Diarrhea Contains pectin, which can help firm up loose stool. Resistant starch can help bulk up stool.
Constipation Softens stool and helps with regularity. The resistant starch may have a constipating effect on some individuals.
Taste Sweet and soft. Bland and starchy.

Simple Ways to Incorporate Bananas While Sick

  • Classic Banana: The simplest method is just to eat a plain, ripe banana. Its bland taste and soft texture make it perfect for a sensitive stomach.
  • Banana Smoothie: Blend a ripe banana with milk (or a dairy-free alternative), and a spoonful of honey for a soothing, nutrient-dense drink.
  • Mashed Banana: Mash a ripe banana into a soft purée. You can eat it on its own or mix it into a bowl of plain, hot oatmeal or yogurt.
  • Baked Banana: Baking a banana can make it even softer and warmer, which is especially comforting for a sore throat. Sprinkle with a touch of cinnamon for added flavor.
  • BRAT Diet: Combine banana with plain rice, applesauce, and toast for a gentle, balanced, and easily digestible meal plan when you have an upset stomach.

Conclusion

For generations, the simple banana has been a go-to remedy for those feeling under the weather, and for good reason. Its unique combination of easy digestibility, soothing texture, and vital nutrients like potassium makes it a powerful ally against the discomfort of illness. Whether you are dealing with an upset stomach, recovering from a fever, or simply have a sore throat, bananas provide gentle, nourishing relief to help you on the path to recovery. By replenishing lost electrolytes and supporting your body's natural defense system, the humble banana proves that sometimes, the most effective remedies are also the most simple.

When in Doubt, Listen to Your Body

While bananas are beneficial for most, individuals with specific conditions like histamine sensitivity or a banana allergy might experience adverse effects, including increased mucus production. If you notice your symptoms worsening, it is always best to listen to your body and consult a healthcare provider for personalized advice.

Visit Healthline for more on beneficial foods when sick.

Frequently Asked Questions

Yes, bananas are highly recommended for diarrhea. They are a binding food, and their high pectin content helps absorb excess fluid in the intestines to firm up stool. They also replace potassium lost from frequent bowel movements.

Yes, bananas are an excellent choice for a sore throat. Their soft, smooth texture is gentle on the throat, and their non-acidic nature prevents further irritation.

Yes, bananas are gentle on the stomach and can help alleviate nausea. They contain simple carbohydrates that are easy to digest, providing energy without irritating an upset stomach.

Ripe bananas are generally better when sick because they are easier to digest and gentler on the stomach. Unripe (green) bananas contain resistant starch, which can be harder to process and may cause gas or bloating in some individuals.

Some individuals with specific sensitivities or histamine issues may find that bananas increase mucus production. However, for most people without these sensitivities, bananas do not typically cause this problem and their benefits outweigh this concern.

Bananas contain fast-acting carbohydrates and natural sugars (sucrose, fructose, and glucose) that provide a quick and easily absorbable source of energy for a body that feels weak or fatigued.

The BRAT diet (Bananas, Rice, Applesauce, Toast) is a regimen of bland foods recommended for short-term recovery from stomach issues. Bananas are a core part of this diet because they are easy to digest, help replace potassium, and can firm up stool.

Yes, in addition to their potassium content, bananas have a high water content. This helps to keep you hydrated, which is crucial for managing symptoms like congestion.

Medical Disclaimer

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