Skip to content

Why Eat Hot Soup When Sick? The Science and Comfort Behind the Remedy

5 min read

According to a 2025 review in the journal Nutrients, consuming soup may reduce the severity and duration of respiratory infections by a modest amount. For centuries, people have relied on a warm bowl of hot soup when sick, a tradition backed by both comforting experience and emerging scientific evidence.

Quick Summary

Hot soup helps combat sickness through multiple pathways: providing crucial hydration and electrolytes, soothing irritated airways to relieve congestion, and delivering easily digestible nutrients. Its ingredients often possess anti-inflammatory and immune-boosting properties, which can shorten the duration of illness and aid recovery.

Key Points

  • Hydration: Broth-based soups replenish fluids and electrolytes lost during illness, helping to prevent dehydration.

  • Congestion Relief: The steam and warmth from hot soup help loosen mucus and soothe irritated nasal passages and a sore throat.

  • Nutrient Delivery: Soup provides easily digestible vitamins, minerals, and protein when appetite is low, supporting the body's immune response.

  • Anti-inflammatory Effects: Ingredients like garlic, ginger, and turmeric can help reduce inflammation, a key part of the body's response to infection.

  • Symptom Reduction: Some studies suggest that consuming soup may reduce the severity and duration of respiratory infection symptoms.

  • Psychological Comfort: The soothing, familiar feeling of a warm bowl of soup can provide significant comfort and improve overall well-being when feeling unwell.

In This Article

The Core Benefits of Hot Soup for Illness

When your body is fighting a virus, its energy reserves are diverted towards the immune response, often leading to a reduced appetite and fatigue. Hot soup addresses these issues directly by offering an easily digestible source of calories, vitamins, and minerals that can be consumed even when a full meal is unappealing. The warmth and moisture also provide immediate symptomatic relief, while the ingredients work on a deeper, cellular level to support recovery.

How Hot Liquid Aids the Respiratory System

One of the most noticeable effects of hot soup is its ability to relieve upper respiratory symptoms. The steam from the broth acts as a natural decongestant, increasing the temperature of nasal and respiratory passages. This warmth helps loosen thick mucus, making it easier to clear from your nose and throat. A 2009 study from the Common Cold Center at Cardiff University found that a hot drink provided immediate and sustained relief from symptoms like runny nose, cough, and sore throat, outperforming the same beverage at room temperature. This effect is magnified by the flavorful, nourishing properties of soup, which are more appealing than plain hot water.

The Importance of Hydration and Electrolytes

Fever, vomiting, and diarrhea can quickly lead to dehydration, which can worsen symptoms and prolong illness. A high fever can increase the body's fluid requirements, and a sore throat can make swallowing painful, causing a person to drink less. Soups, especially broth-based ones, are an excellent way to replenish fluids and essential electrolytes like sodium, potassium, and chloride. Maintaining proper hydration helps regulate body temperature, promotes good circulation, and ensures your body's immune cells can function effectively. Unlike sugary sports drinks or juices, which can worsen some stomach issues, a balanced broth offers rehydration without potential complications.

Nutrients and Anti-inflammatory Properties

Beyond simple hydration and comfort, the ingredients commonly found in soups offer specific health benefits. Many recipes incorporate vegetables rich in antioxidants and vitamins, such as carrots, celery, and onions, which help support immune function. Certain spices, like ginger and turmeric, are well-known for their anti-inflammatory properties, which can help reduce the inflammation in your respiratory tract that causes congestion.

  • Chicken Soup Ingredients for Immune Support
    • Chicken: Provides protein and the amino acid cysteine, which can help break down mucus.
    • Garlic and Onions: Contain compounds that have antibacterial and antiviral effects.
    • Carrots and Celery: Rich in vitamins A and C, and antioxidants that boost overall immune health.
  • Bone Broth Benefits
    • Minerals: Broths made from bones provide essential minerals like calcium, potassium, and magnesium.
    • Collagen: Contains amino acids that can aid in recovery and reduce inflammation.

Comparison of Different Soups for Sickness

Different soups offer unique benefits depending on their ingredients. While the classic chicken noodle soup is a great all-rounder, other options may be better suited for specific symptoms or dietary needs.

Soup Type Key Ingredients Primary Benefits Best For
Chicken Noodle Soup Chicken, broth, noodles, carrots, celery, onion Protein, hydration, congestion relief, comfort General cold and flu symptoms; loss of appetite
Turmeric Lentil Soup Lentils, turmeric, ginger, leafy greens High in fiber, protein, and powerful anti-inflammatories Providing sustained energy and fighting systemic inflammation
Miso Soup Miso paste, tofu, seaweed, mushrooms Probiotics for gut health, minerals, immune-supporting compounds Intestinal issues; needing a light, easily digestible meal
Ginger Vegetable Soup Ginger, carrots, spinach, various vegetables Anti-nausea effects, high in vitamins and antioxidants Upset stomach, nausea, and improving digestion

Making the Most of Your Soup

To maximize the healing potential of your soup, consider these tips:

  • Focus on Whole Ingredients: Opt for homemade or low-sodium store-bought versions to control the ingredients and avoid unnecessary preservatives. Prioritize fresh vegetables, lean protein, and immune-boosting spices.
  • Stay Hydrated: Sip broth throughout the day, even when you aren't eating a full bowl. This ensures a steady intake of fluids and electrolytes.
  • Listen to Your Body: If a rich, heavy soup feels too much, stick to a simple, light broth. The key is to get calories and fluids in, no matter how simple the form.
  • Enhance with Herbs: Add fresh herbs like thyme, sage, or oregano, which have antimicrobial properties, to boost flavor and healing potential.

Conclusion

There is substantial evidence supporting the traditional wisdom of consuming hot soup when sick. It's not just a feel-good remedy; it's a multi-faceted approach to recovery. The steam helps clear nasal passages, the broth provides essential hydration and electrolytes, and the nutrient-dense ingredients supply the body with the resources it needs to fight infection. Whether you choose a classic chicken noodle, a spicy ginger broth, or a hearty lentil stew, the combination of warmth, fluids, and nutrients makes hot soup a highly effective and comforting aid for overcoming illness. Always remember that while soup is a powerful supportive measure, it is not a cure, and consulting a healthcare provider for persistent or severe symptoms is always recommended.

Key Takeaways

  • Provides Hydration and Electrolytes: Soup's high liquid and mineral content effectively rehydrates the body during fever or illness-related fluid loss.
  • Relieves Congestion: The steam and warmth from hot soup act as a natural decongestant, helping to loosen mucus and soothe irritated airways.
  • Supports Immune Function: Ingredients like chicken, garlic, and vitamin-rich vegetables provide essential nutrients that power the immune system's recovery efforts.
  • Offers Easy-to-Digest Nutrition: When appetite is low, soup provides a gentle source of calories and nutrients that the body can process without strain.
  • Delivers Anti-inflammatory Benefits: Spices like ginger and turmeric, along with compounds in chicken, can help reduce inflammation associated with respiratory infections.
  • Provides Comfort: The psychological comfort of a warm, nourishing meal should not be underestimated when feeling unwell, helping to alleviate feelings of fatigue and chilliness.

FAQs

Q: Does soup actually cure the cold or flu? A: No, soup is not a cure. It is a supportive measure that can help manage and reduce the severity of symptoms, aid hydration, and provide nutrients to help your body fight the illness more effectively.

Q: Is chicken soup the only type of soup that works? A: No, while chicken soup has unique benefits, any water-based broth or vegetable soup is helpful due to its hydrating and soothing properties. Vegan or vegetarian alternatives with ingredients like ginger, garlic, and turmeric are also highly beneficial.

Q: How does soup help with dehydration? A: Soups are high in water and contain electrolytes like sodium and potassium, which help the body replenish fluids more effectively than plain water alone, especially when experiencing fever, vomiting, or diarrhea.

Q: What ingredients should I look for in a soup for sickness? A: Look for ingredients with known immune-supporting properties, such as garlic, ginger, onions, leafy greens, and protein sources like chicken or lentils. These add vitamins, antioxidants, and anti-inflammatory compounds.

Q: Can hot soup help a sore throat? A: Yes, the warmth of the liquid can soothe an inflamed and irritated throat. Additionally, ingredients like salt in the broth can provide some temporary pain relief.

Q: Are canned soups just as good as homemade? A: Homemade soup is often more nutritious, but canned soups can still be beneficial, particularly for hydration and warmth. Choose low-sodium varieties and add extra vegetables or spices to boost their nutritional content.

Q: Can I give hot soup to children when they are sick? A: Yes, warm soup can be a great way to keep children hydrated and nourished when sick. Always ensure the temperature is not too hot to prevent burns. Consult a pediatrician for specific advice, especially concerning electrolyte solutions for severe dehydration.

Frequently Asked Questions

No, soup is not a cure. It is a supportive measure that can help manage and reduce the severity of symptoms, aid hydration, and provide nutrients to help your body fight the illness more effectively.

No, while chicken soup has unique benefits, any water-based broth or vegetable soup is helpful due to its hydrating and soothing properties. Vegan or vegetarian alternatives with ingredients like ginger, garlic, and turmeric are also highly beneficial.

Soups are high in water and contain electrolytes like sodium and potassium, which help the body replenish fluids more effectively than plain water alone, especially when experiencing fever, vomiting, or diarrhea.

Look for ingredients with known immune-supporting properties, such as garlic, ginger, onions, leafy greens, and protein sources like chicken or lentils. These add vitamins, antioxidants, and anti-inflammatory compounds.

Yes, the warmth of the liquid can soothe an inflamed and irritated throat. Additionally, ingredients like salt in the broth can provide some temporary pain relief.

Homemade soup is often more nutritious, but canned soups can still be beneficial, particularly for hydration and warmth. Choose low-sodium varieties and add extra vegetables or spices to boost their nutritional content.

Yes, warm soup can be a great way to keep children hydrated and nourished when sick. Always ensure the temperature is not too hot to prevent burns. Consult a pediatrician for specific advice, especially concerning electrolyte solutions for severe dehydration.

Different ingredients offer unique benefits. For example, chicken provides protein and amino acids, while vegetables add vitamins and antioxidants. Herbs and spices like ginger and garlic contain anti-inflammatory and antimicrobial properties.

Yes, light, broth-based soups are easy on the digestive system when your appetite is low. Ingredients like ginger can also help with nausea.

References

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Medical Disclaimer

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