Alzheimer’s disease: Omega-3 DHA supplements may not reduce risk
New research indicates that high-dose omega-3 supplements do not improve memory, cognition, or brain structure in older adults. While these supplements successfully increase DHA levels in the brain, they do not prevent Alzheimer's-related decline. Experts suggest focusing on overall diet and lifestyle choices instead.
What changed
A new study from the Keck School of Medicine at USC challenges the belief that fish oil supplements prevent Alzheimer's.
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Omega-3 DHA Supplements May Not Reduce Alzheimer's Risk
confidence 100%New research indicates that high-dose omega-3 supplements do not improve memory, cognition, or brain structure in older adults. While these supplements successfully increase DHA levels in the brain, they do not prevent Alzheimer's-related decline. Experts suggest focusing on overall diet and lifestyle choices instead.
What's confirmed:
- High-dose DHA supplements increase omega-3 levels in the brain but do not improve memory or cognition.
- Fish oil supplements do not prevent Alzheimer's-related brain changes or decline.
- A two-year study found no meaningful benefits for brain structure or thinking skills despite increased brain DHA.
Still unconfirmed:
- Americans spend more than $1 billion annually on fish oil supplements.