Can fish oil calm ADHD and autism symptoms? a new trial investigates

NCT ID NCT06698588

First seen Aug 05, 2026 · Last updated Aug 06, 2026 · Updated 1 time

Summary

This trial tests whether daily omega-3 fish oil supplements can improve sleep, mood, and behavior in children who have sleep problems and symptoms of ADHD, autism, or both. The study takes a symptom-focused approach, aiming to identify which specific difficulties—like emotional ups and downs or poor sleep—might respond best to omega-3s. Around 200 children will receive either omega-3 capsules or a placebo for a period, and researchers will track changes in symptom patterns. The goal is to see if this natural supplement could be a helpful option for children who may not have a formal diagnosis but still struggle with these issues.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
Omega-3 fish oil supplements (EPA and DHA)
What this could lead to
If effective, omega-3 supplements could offer a simple, natural way to ease sleep and behavioral symptoms in children with ADHD or ASD traits, potentially helping those without a formal diagnosis.
What could go wrong
This is an early-stage trial, and results may not apply to all children. The supplement might not outperform placebo, and benefits could be modest or limited to specific symptoms.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • FHMLS

    Swansea, SA28PP, United Kingdom

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