Fish oil supplements are widely promoted for brain health, but a two-year clinical trial has raised questions about their benefits. Researchers found that omega-3 fatty acids from supplements reached the brain, yet participants showed no significant improvement in memory or protection against brain shrinkage associated with Alzheimer’s disease. The findings suggest that increasing omega-3 levels alone may not be enough to preserve cognitive function. Researchers propose that obtaining these nutrients through a balanced diet could offer additional benefits, although this study does not prove that dietary omega-3s are more effective than supplements. More research is needed to understand how omega-3 intake influences long-term brain health.
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