Research suggests that chicken soup may offer modest symptom relief during colds and flu through at least two plausible mechanisms: improving nasal mucus clearance and potentially reducing inflammation. A small randomized controlled trial found that sipping hot chicken soup increased nasal mucus flow rate in healthy adults, with a slight advantage over hot water alone that researchers attributed to aroma or taste rather than temperature, though effects were short-lived. A laboratory study found that chicken soup inhibited neutrophil migration in a concentration-dependent way, suggesting a mild anti-inflammatory effect, while a clinical review of influenza management noted chicken soup among the non-prescription approaches with the strongest empirical support for symptom relief. Studies indicate, however, that the evidence base remains limited — relying on a very small RCT, an in vitro laboratory assay that may not translate directly to human outcomes, and a narrative review — so while the findings are generally supportive, they should be interpreted with appropriate caution.
Citations from PubMed and preprint sources. Match score (0-100) reflects automated search ranking, not clinical appraisal.
| Title | Type | Year | Direction | Match |
|---|---|---|---|---|
| Effects of drinking hot water, cold water, and chicken soup on nasal mucus ve... | RCT | 1978 | Supports | 95 |
| Chicken soup inhibits neutrophil chemotaxis in vitro. | Other | 2000 | Supports | 92 |
| Advances in the Diagnosis and Management of Influenza. | Other | 2002 | Supports | 72 |