Synopsis

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

Sea vegetation, including various types of seaweed and algae, has been used in traditional medicine systems, especially in East Asia, for a range of health purposes, sometimes including the support of circulation and cognitive function. Historical texts from Chinese and Japanese medicine occasionally refer to sea vegetables (such as kelp and laminaria) as agents that "clear phlegm" or "open channels," concepts loosely interpreted by some as supporting circulation, including to the brain. However, these references are not specific or detailed regarding cerebrovascular support. The traditional use is more general, with sea vegetables valued for their mineral content and presumed "detoxifying" properties.

Modern scientific literature on the direct effects of sea vegetation on cerebral circulation is limited. Some studies have explored the neuroprotective and antioxidant properties of compounds found in seaweed, such as fucoidan and phlorotannins, and a few animal studies suggest possible benefits for cognitive function. However, robust clinical trials in humans demonstrating improved brain circulation from sea vegetable consumption are lacking. Therefore, the evidence supporting their use for this specific purpose is weak and primarily based on traditional uses, not scientific validation.

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