correlational
Analysis v1
Strong Support
People over 65 who eat more fish right now tend to be a bit slower at quick thinking tasks like reacting fast or spotting differences, even if their overall brain health is fine.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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Cognitive performance in older adults is inversely associated with fish consumption but not erythrocyte membrane n-3 fatty acids.
Cross-Sectional Study
Human
2014 MarThis study found that older adults who eat more fish tend to be a bit slower at quick thinking tasks, like reacting fast or spotting differences — even if they’re otherwise healthy. It doesn’t prove fish causes this, but it does match the idea that more fish might not help the brain stay sharp in these ways.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.