Synopsis

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

Molluscs, including various species like oysters, clams, and mussels, have been used in traditional medicine systems, especially in East Asian practices, for supporting cardiovascular health and treating symptoms described as "heart weakness." Historical use is found in traditional Chinese medicine (TCM), where shell-derived substances (such as from abalone or oyster shells) are believed to calm the spirit and support the heart by addressing issues like palpitations or anxiety. The rationale often centers on the mineral content—primarily calcium and magnesium—as well as trace elements believed to contribute to overall health and vitality.

However, scientific validation for the use of molluscs specifically to treat or strengthen the heart is limited. Some studies have examined mollusc extracts for their potential cholesterol-lowering effects or antioxidant properties, which could, in theory, benefit cardiovascular function. Yet, these findings are preliminary and do not extend to direct evidence for treating "heart weakness" as defined in clinical cardiology. The traditional use rating is given a 2, reflecting weak but existent historical precedent without robust supporting data from modern clinical trials. Therefore, while molluscs are traditionally used for general health and sometimes for heart-related complaints, scientific evidence remains insufficient to recommend their use for this purpose.

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