When cold and flu season hits, many of us instinctively reach for a warm bowl of chicken soup. Passed down through generations and often called “grandma’s remedy,” chicken soup has long been associated with comfort, warmth, and recovery. But is this popular belief backed by science — or is it simply a comforting tradition?

Let’s take a closer look at what research says and why chicken soup may still deserve a place in your recovery routine.

Is There Scientific Evidence That Chicken Soup Treats Colds or Flu?

To date, there is no strong scientific evidence proving that chicken soup can cure or directly fight viruses responsible for the common cold or influenza. Colds and flu are caused by viruses, and no food alone can eliminate them.

However, this doesn’t mean chicken soup has no benefits at all.

Chicken Soup and Inflammation: What Studies Suggest

A study published in the medical journal Chest explored whether chicken soup could influence inflammation related to upper respiratory tract infections. The research suggested that chicken soup may have anti-inflammatory properties, which could potentially help ease symptoms such as nasal congestion and throat irritation.

In the same study, researchers examined the movement of neutrophils, a type of white blood cell involved in inflammation. They observed that neutrophil activity was reduced in the presence of chicken soup, suggesting a possible mechanism by which soup might help calm inflammatory responses in the airways.

While this does not mean chicken soup treats infections, it may help reduce symptom severity.

Why Chicken Soup Specifically?

You might wonder why chicken soup — and not just any soup — is so often associated with colds and flu.

1. Warmth and Steam Help Relieve Congestion

According to another study published in Chest, the warmth, steam, and aroma of chicken soup may help clear nasal passages and improve airflow. Warm liquids can loosen mucus, making it easier to breathe and reducing sinus pressure.

2. Spices and Herbs May Offer Mild Relief

Many chicken soup recipes include ingredients such as garlic, onions, ginger, or pepper. These ingredients are known for their antioxidant and anti-inflammatory properties, which may provide mild immune support and symptom relief.

3. Nutrient-Dense and Easy to Digest

Kristen Smith, a registered dietitian and spokesperson for the Academy of Nutrition and Dietetics, explains that chicken soup can be a nutrient-dense option when appetite is low — a common issue during illness.

Chicken soup often contains:

• Protein from chicken, which supports tissue repair

• Vitamins and minerals from vegetables such as carrots, celery, and onions

• Electrolytes from broth, which support hydration

Hydration: One of the Most Important Benefits

One of the biggest advantages of chicken soup during a cold or flu is its contribution to hydration. Fever, congestion, and reduced appetite can easily lead to dehydration.

Warm soups:

• Increase fluid intake

• Are easier to consume than solid foods

• Help soothe a sore throat

Proper hydration plays a critical role in supporting the immune system and speeding recovery.

Does Chicken Soup Boost the Immune System?

While chicken soup is not an immune-boosting cure, it supports the body in indirect ways:

• Providing energy and nutrients

• Supporting hydration

• Offering comfort and warmth

• Encouraging rest and recovery

Together, these factors help the body do what it does best — fight infection naturally.

The Bottom Line

The common cold and flu require:

• Adequate rest

• Proper hydration

• Symptom management

• Time for recovery

Warm liquids like chicken soup can be a comforting and supportive part of that process. While it won’t cure illness, it may help you feel better, breathe easier, and stay nourished during recovery.

Final Thoughts

So, can chicken soup fight a cold or flu? Not directly — but it can certainly support your body while it fights for you.

If you enjoy chicken soup when you’re sick, there’s no reason to avoid it. In fact, embracing warm, nourishing foods may make the recovery process a little more comfortable.

And sometimes, comfort itself is powerful medicine.