Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Flavonoids are a diverse group of polyphenolic compounds found in many fruits, vegetables, and medicinal plants. Their use in supporting or treating bronchitis is primarily justified by emerging scientific evidence, although their use may also overlap with traditional medicine practices. Flavonoids possess anti-inflammatory, antioxidant, and immunomodulatory effects, which are relevant to the pathophysiology of bronchitis—a condition characterized by inflammation of the bronchial tubes and increased oxidative stress in the airways.

Several in vitro and animal studies have demonstrated that certain flavonoids, such as quercetin and hesperidin, can reduce airway inflammation, inhibit pro-inflammatory cytokine release, and decrease oxidative damage in the respiratory tract. These properties theoretically contribute to symptom relief and may help in reducing the duration or severity of bronchitis episodes. Some clinical studies have investigated the effects of flavonoid-rich plant extracts (e.g., Pelargonium sidoides, elderberry) on respiratory infections, including acute bronchitis, and reported modest reductions in symptom severity and duration. However, these studies often involve complex mixtures, and the specific contribution of flavonoids is not always clear.

Overall, while there is some scientific evidence supporting the biological plausibility and potential benefit of flavonoids in bronchitis, high-quality, large-scale clinical trials directly evaluating isolated flavonoids for bronchitis are lacking. Therefore, the level of evidence is limited (rated 2 out of 5) and further research is needed to establish clear clinical recommendations.

More about Flavonoid
More about Bronchitis

Other ingredients used for Bronchitis

Other health conditions supported by Flavonoid

Products containing Flavonoid