Clinical trial · Nutrition · 22 Oct 2026
Millions take fish oil for brain health. A two-year study found no benefit
Source: ScienceDaily
What the research found
A surprising two-year clinical trial found that fish oil supplements successfully delivered omega-3s to the brain but failed to improve memory or protect against Alzheimer's-related brain shrinkage. Researchers suspect that getting these nutrients through a healthy diet may offer benefits that supplements alone cannot provide.
Evidence level: Clinical trial. This is among the stronger kinds of evidence, but one study rarely settles a question.
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