Synopsis

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

Seaweed has a long history of use in traditional medicine across various cultures, particularly in East Asia, for supporting general health and boosting immunity, which may indirectly relate to its use for colds. In Traditional Chinese Medicine (TCM), certain types of seaweed (such as kelp and laver) are believed to clear heat and resolve phlegm, which are symptoms often associated with respiratory tract infections and colds. Similarly, in Japanese and Korean folk medicine, seaweed soups are commonly consumed during illness for their perceived restorative properties.

From a scientific perspective, while seaweed is rich in vitamins (such as vitamin C), minerals (like iodine and zinc), and bioactive compounds (like polysaccharides and antioxidants), there is limited direct clinical evidence supporting its efficacy specifically for treating or preventing the common cold. Some laboratory studies suggest that certain seaweed polysaccharides may have immunomodulatory or antiviral effects, but these findings are preliminary and have not been conclusively demonstrated in human clinical trials for colds. Therefore, the use of seaweed for colds is primarily rooted in tradition rather than robust scientific validation.

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Other ingredients used for Colds (general)

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