Best Supplements for ADHD Support

Evidence-based options that may help alongside standard treatment

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Quick Answer

What are the best supplements for adhd support?

The top 3 evidence-based supplements for adhd support are Omega-3s (7.5/10), Iron (9/10), and Zinc (10/10). Most studied supplement for ADHD. Modest but real effect.

Let's be clear upfront: no supplement replaces proven ADHD treatments. But some have legitimate research showing they may help, particularly when addressing deficiencies. Think of these as potential additions, not alternatives.

Strongest Evidence

Effective Dose1-2g daily, higher EPA ratio (at least 500mg EPA)
Time to Effect8-12 weeks

Multiple meta-analyses show omega-3s provide modest improvements in ADHD symptoms. The effect size is smaller than medication but statistically significant. EPA seems more important than DHA for ADHD specifically. May take 3 months.

Best for:Adjunct to standard treatmentThose with low fish intakeChildren with ADHD
Iron9/10
Effective Dose18-45mg daily if deficient
Time to Effect2-3 months

Iron is crucial for dopamine production. Studies show low ferritin is more common in ADHD. One study found ferritin levels below 30 ng/mL correlated with worse symptoms. Get tested before supplementing. Don't guess with iron.

Best for:Those with low ferritinChildren with ADHD and low iron

Moderate Evidence

Zinc10/10
Effective Dose15-30mg daily
Time to Effect4-8 weeks

Zinc is involved in dopamine regulation. Some studies show it may enhance medication effectiveness. Benefits are more consistent in populations with lower baseline zinc intake. Worth checking levels.

Best for:Adjunct to medicationThose with zinc deficiency
Effective Dose200-400mg daily
Time to Effect4-8 weeks

Magnesium deficiency is common and can worsen attention and hyperactivity. Some studies show benefit, though evidence is mixed. Unlikely to hurt and may help sleep, which affects ADHD symptoms.

Best for:Sleep supportThose with deficiencyGeneral nervous system support
Effective Dose2000-5000 IU daily
Time to Effect4-8 weeks

Low vitamin D is associated with ADHD in observational studies. Whether supplementation helps symptoms is less clear. Worth correcting deficiency regardless.

Best for:Those with vitamin D deficiency

Limited but Interesting

Effective Dose100-300mg daily
Time to Effect4-8 weeks

A few small studies suggest benefits for attention and impulsivity in children. Research is limited but mechanism makes sense. Not enough evidence for strong recommendation.

Best for:Those interested in trying newer options

Beyond Supplements

  • Sleep is critical. Poor sleep worsens ADHD significantly.
  • Exercise has solid evidence for improving attention and reducing hyperactivity.
  • Protein at breakfast may help medication work better
  • Screen time and ADHD symptoms interact. Worth managing.
  • These supplements are complements, not replacements, for evidence-based treatment.

Note: ADHD is a real neurological condition. These supplements may provide modest support but don't replace professional diagnosis and treatment. Discuss any supplements with your prescribing provider.

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