Unlocking the Science: Why is Chicken Broth So Comforting?

January 9, 2026 •

4 min read

A study published in the journal Chest found that warm chicken soup can clear nasal passages more effectively than hot water alone. This initial physiological relief, combined with deeper psychological and nutritional factors, is why a steaming bowl of chicken broth feels like a soothing hug from the inside out.

Quick Summary

The soothing power of chicken broth comes from a blend of psychological and biological factors, including mood-enhancing amino acids, inflammation-reducing compounds, and the emotional comfort of warmth and nostalgia.

Key Points

Nostalgic Connection: Chicken broth often triggers positive childhood memories, activating the brain's reward system for emotional comfort.
Serotonin Production: The tryptophan found in chicken is a precursor to serotonin, the 'feel-good' hormone that improves mood and rest.
Anti-Inflammatory Effects: Compounds in broth, such as carnosine and amino acids, can help reduce inflammation and ease cold symptoms like congestion.
Gut-Brain Axis Support: Nutrients like glycine and glutamine support a healthy gut lining, which is directly linked to improved mental wellness and mood.
Hydration and Warmth: The simple act of sipping a warm, hydrating liquid soothes a sore throat, replenishes electrolytes, and helps the body recover from illness.
Digestive Ease: Since broth is easy to digest, it allows the body to conserve energy for healing instead of focusing on breaking down complex foods.
Nutrient-Dense: Broth made with bones provides valuable minerals, collagen, and gelatin for joint health and overall well-being.

The Multilayered Appeal of Chicken Broth

For generations, a bowl of chicken broth has been the go-to remedy for everything from a common cold to a broken heart. While many assume its power is simply a folk remedy, modern science and psychology reveal a complex, synergistic blend of properties that make it genuinely restorative. Its comforting qualities aren't just in your head; they are a result of specific amino acids, rich nutrients, and powerful associations rooted in our memories.

The Emotional Connection: Nostalgia and Serotonin

At the core of chicken broth's appeal lies a deep-seated emotional and psychological connection. For many, the aroma of simmering chicken, vegetables, and herbs instantly evokes memories of childhood and being cared for by a loved one. This sense of nostalgia is a powerful psychological tool, transporting us back to a time of safety and security. This association is so strong it can activate the brain's reward centers, releasing dopamine and creating a momentary feeling of pleasure. The emotional comfort is further enhanced by the presence of tryptophan, an amino acid found in chicken. The body uses tryptophan to produce serotonin, the "feel-good" hormone that regulates mood and helps us feel calm and content. This makes chicken broth a literal mood-booster, providing a physiological sense of well-being alongside the emotional comfort.

The Physiological Healing: A Nutritious Powerhouse

Beyond its emotional properties, chicken broth offers significant physiological benefits, especially when made from bones. A rich bone broth is a nutritional powerhouse, delivering essential minerals and compounds to the body.

Hydration: When you're sick, staying hydrated is crucial. The broth is a simple and delicious way to replenish fluids and electrolytes, which are lost during illness.
Anti-Inflammatory Effects: Chicken broth contains anti-inflammatory compounds. The steam alone can act as a natural decongestant, opening up airways and easing respiratory symptoms. Studies have also found that ingredients in chicken soup can inhibit the migration of neutrophils, white blood cells involved in inflammation, which can help reduce congestion.
Gut Health: The gelatin, collagen, and amino acids like glutamine and glycine derived from simmering bones can help soothe and repair the gut lining. A healthy gut is strongly linked to mental well-being via the gut-brain axis.
Joint Support: The gelatin and collagen can also support joint health, especially beneficial for those with arthritis or other joint conditions.

Homemade vs. Store-Bought Broth: A Comparison


Feature	Homemade Chicken Broth	Store-Bought Chicken Broth
Nutritional Density	Higher, especially if made from bones, as it contains more gelatin, collagen, and minerals.	Lower and more variable, depending on the brand and preparation method.
Ingredient Control	Complete control over ingredients, including salt, fat, and specific herbs.	Limited control; may contain high levels of sodium, additives, or flavor enhancers.
Flavor Profile	Rich, complex, and deeply savory flavor developed over hours of slow simmering.	Often contains a standardized, less complex flavor profile.
Cost	Generally more cost-effective, using kitchen scraps like a leftover carcass.	Can be more expensive, especially premium or organic brands.
Time and Effort	Requires significant time and effort for simmering, straining, and cooling.	Immediate and convenient for quick use in recipes.

The Anatomy of a Comforting Broth

To make the most comforting chicken broth, focus on these key ingredients and methods:

Use Quality Bones: A whole chicken carcass or a mix of necks, backs, and feet will provide the richest flavor and most gelatin. Roasting the bones first adds a deeper, more savory flavor.
Aromatics: Onions, garlic, carrots, and celery are the classic foundation for a flavorful broth. Leaving the skin on onions can add more color and flavor.
Herbs and Spices: Fresh parsley, thyme, and bay leaves are traditional additions. For extra anti-inflammatory properties, consider adding ginger or turmeric.
Slow and Low Simmer: A long, gentle simmer is essential for extracting all the flavor and nutrients. Aim for at least 3-4 hours on the stovetop or longer in a slow cooker.
A Touch of Acidity: A splash of apple cider vinegar can help draw minerals out of the bones during cooking.

Conclusion: The Ultimate Feel-Good Elixir

From the warm, aromatic steam that clears your sinuses to the nutrient-rich liquids that soothe your gut, chicken broth provides a holistic form of comfort. It leverages deep psychological associations with care and nostalgia while delivering a powerhouse of physiological benefits. Whether you're feeling under the weather or simply seeking a culinary hug, the scientific and emotional properties of chicken broth make it the ultimate feel-good food, proving its reputation is well-deserved and rooted in more than just tradition. Understanding the deep connection between our gut and brain further solidifies why this simple soup can have such a profound impact on our mood and well-being. For further reading on the gut-brain connection, refer to the National Institutes of Health.

Frequently Asked Questions

The primary psychological reason is nostalgia. For many, chicken broth is associated with positive childhood memories of being cared for and nurtured during times of sickness or stress.

The chicken in broth contains tryptophan, an amino acid that the body uses to produce serotonin. Serotonin is a neurotransmitter that helps regulate mood, and its production can lead to feelings of happiness and contentment.

Yes. The warmth of the broth is physically soothing, especially for a sore throat. Additionally, the steam from hot broth can act as a natural decongestant, opening up airways and providing temporary relief from stuffiness.

Yes. A 2000 study found that chicken soup could inhibit the movement of neutrophils, reducing inflammation in the upper respiratory tract. Amino acids like glycine and arginine also have anti-inflammatory effects.

Chicken broth, particularly bone broth, contains gelatin, collagen, and amino acids such as glutamine, which help to soothe and repair the lining of the digestive tract. This supports overall gut integrity and function.

Homemade broth is often more nutrient-dense and flavorful because it is made by simmering bones for a longer duration, extracting more collagen, gelatin, and minerals. Store-bought broth is convenient but typically offers lower nutritional value.

Yes. The amino acid glycine, abundant in bone broth, has been shown to have a calming effect on the nervous system and can help improve sleep quality.