I’m not endorsing (or criticizing) this brand, which delivers 32 mg of omega-3’s per 2 tablespoon serving. Jiff adds oil from fish, but nuts are a good source of omega-3s on their own and part of the diet for depression and ADHD.
A broader look at autism symptoms finds hope for fish oil
STUDY: Sánchez-García I & Sánchez-Quesada C, Nutrients 2026
STUDY TYPE: Systematic review and meta-analysis of randomized controlled trials
FUNDING: Independent
Background
Omega-3 fatty acids build neuron membranes and calm inflammation. They tend to be low in autism, but whether they treat autism has been unclear, with mixed results in trials of varied designs.
Earlier meta-analyses may missed the signal, as each focused on only one symptomatic domain. This one broadened the lens.
The Study
- Twelve randomized trials (13–68 participants each, ages 3–28) compared omega-3 with placebo for 4–52 weeks.
- Daily doses ranged from 200 mg to 5.2 g of DHA and EPA.
- Eight validated rating scales were pooled onto five behavior domains.
Results
Omega-3 reduced irritability (effect size 0.3, p = 0.043) and communication problems (effect size 0.2, p = 0.010), both small effects. Lethargy/withdrawal, stereotypy, and hyperactivity showed no meaningful difference from placebo.
These effects are modest, well below the g of 0.80–1.20 seen with risperidone or aripiprazole on irritability.
The irritability finding was fragile, losing significance once three high-risk-of-bias trials were dropped; the communication finding held up in every sensitivity check.
Side Effects
Safety data weren’t pooled, but omega-3 are generally safe with mild gastrointestinal side effects.
Limitations
Mapping eight scales onto shared domains relied on clinical judgment, not validated equivalence. Only six to twelve trials gave input to each domain.
Practice Implications
- Consider omega-3 when your patient with autism prefers natural treatments or has comorbidities with more robust data for omega-3s (depression, hyper-triglycerides, possibly ADHD).
- In my own review, I gave them a “possible” rating for autism, the lowest in a 3-point scale that runs: confirmed, probable, possible (it’s in the upcoming Carlat Fact Book on Complimentary and Alternative Medicine in Psychiatry.
- Omega-3 is one supplement that needs a quality product with a high EPA ratio for depression. Find lab-tested products here.
—Chris Aiken, MD
Director, Psych Partners
Editor in Chief, Carlat Psychiatry Report
