Evidence supporting the use of: Fish (including shell)
For the health condition: Nervous Exhaustion

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Fish and shellfish have been traditionally valued for their nutritional content, but their use for "nervous exhaustion"—a term historically used to describe symptoms such as fatigue, low mood, poor concentration, and anxiety—has some scientific support. Fatty fish (such as salmon, mackerel, and sardines) and shellfish are rich sources of omega-3 polyunsaturated fatty acids (especially EPA and DHA), vitamin B12, and other micronutrients (such as selenium and zinc), all of which play roles in nervous system health and function. Modern scientific studies have shown that omega-3 fatty acids may help reduce symptoms of depression, anxiety, and mental fatigue, and support cognitive function, possibly by modulating neurotransmitter pathways, reducing inflammation, and supporting neuronal membrane integrity. Vitamin B12 deficiency is also known to cause neurological and psychiatric symptoms, including fatigue and cognitive disturbances. While there is no direct, high-quality clinical evidence that simply eating fish or shellfish "treats" nervous exhaustion as a specific diagnosis, regular consumption of these foods is associated with better mental health outcomes and reduced risk of depression and cognitive decline. Therefore, the use of fish and shellfish for symptoms akin to "nervous exhaustion" is supported by moderate scientific evidence, particularly in the context of their nutritional value for brain and nervous system health.

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