Protocol · Neurological Health
Attention-Deficit/Hyperactivity Disorder (ADHD) Protocol
Omega-3 Fatty Acids (Fish Oil) and Zinc are the core of this stack, with 5 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Attention-Deficit/Hyperactivity Disorder (ADHD).
We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.
The stack
7 supplements · 3 graded
| Grade | Supplement | Amount listed | Why it’s in the stack | Evidence on file | Shop |
|---|---|---|---|---|---|
| Primary stackThe core of this protocol | |||||
| Omega-3 Fatty Acids (Fish Oil) | Amount listed: 1–2 g EPA+DHA daily (higher EPA ratio) | Essential for brain structure and function; EPA and DHA support neurotransmitter activity and reduce neuroinflammation
| Grade B for ADHD Symptoms7 studies · 653 people | ||
| Zinc | Amount listed: 15–30 mg daily | Essential for dopamine regulation; deficiency common in ADHD; may enhance medication response
| Not graded yet | ||
| Supporting stackListed as additions to the core | |||||
| Iron | Amount listed: As needed based on ferritin levels (target ferritin >30–50 ng/mL) | Required for dopamine synthesis; low ferritin associated with worse ADHD symptoms | Not graded yet | ||
| Magnesium | Amount listed: 200–400 mg daily | Calming effect on nervous system; deficiency common in ADHD; supports neurotransmitter function
| Not graded yet | ||
| Phosphatidylserine | Amount listed: 100–200 mg daily | Supports neuronal membrane function and neurotransmitter activity; may improve attention and memory
| Grade C for ADHD Symptoms216 people | ||
| L-Carnitine/Acetyl-L-Carnitine | Amount listed: 500–2,000 mg daily | Supports brain energy metabolism and acetylcholine production; may improve attention
| Grade B for ADHD Symptoms4 studies · 234 people | ||
| Vitamin D | Amount listed: 1,000–2,000 IU daily (based on blood levels) | Deficiency associated with ADHD; vitamin D receptors in brain areas involved in attention | Not graded yet | ||
Shop the evidence-backed picks
Support alongside medical care. These supplements are not a treatment for Attention-Deficit/Hyperactivity Disorder (ADHD). If you are being treated for it, talk to your clinician before adding one: supplements can interact with medicines.
The collection holds the supplements we grade A or B for its theme, in third-party tested products where the catalog has them. It opens in our Fullscript store. You can look through it without signing in; Fullscript asks for a free account to order.
Or shop one supplement
The 2 supplements in this protocol graded A or B. Each opens third-party tested products, matched to the dose above where we can.
- Grade B
- Grade B
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How this protocol works
In plain language
ADHD is a neurodevelopmental disorder characterized by inattention, hyperactivity, and impulsivity. It affects brain regions involved in executive function and uses dopamine and norepinephrine as key neurotransmitters. While stimulant medications are the most effective treatment, certain nutritional deficiencies are more common in ADHD and addressing them may help reduce symptoms.
IMPORTANT: These supplements are meant to complement, not replace, evidence-based ADHD treatment. Stimulant and non-stimulant medications remain the most effective treatments. Always work with your healthcare provider.
- Omega-3 Fatty Acids are essential components of brain cell membranes and are crucial for neurotransmitter signaling. Children with ADHD often have lower blood levels of omega-3s. Multiple meta-analyses show that omega-3 supplementation (especially with higher EPA) can modestly improve ADHD symptoms, particularly inattention. The effect size is smaller than medication but may be additive.
- Zinc is essential for dopamine regulation—the key neurotransmitter affected in ADHD. Many children with ADHD have low zinc levels, and supplementation may improve symptoms, particularly when combined with stimulant medication. Some studies show zinc enhances the effectiveness of stimulant medications.
- Iron is required for dopamine synthesis. Low ferritin levels (iron stores) are significantly more common in children with ADHD and correlate with symptom severity. If ferritin is low (below 30-50 ng/mL), iron supplementation may improve symptoms. Always test before supplementing.
- Magnesium has calming effects on the nervous system and is involved in over 300 enzymatic reactions including those affecting neurotransmitters. Magnesium deficiency is common in ADHD, and supplementation (often combined with vitamin B6) may help reduce hyperactivity and improve attention.
- Phosphatidylserine is a phospholipid that supports neuronal membrane function. Studies in children with ADHD show improvements in attention, impulsivity, and short-term memory, though more research is needed.
- L-Carnitine/Acetyl-L-Carnitine supports brain energy metabolism and may enhance acetylcholine production. Acetyl-L-carnitine crosses the blood-brain barrier more easily. Studies show modest improvements in attention and behavior.
- Vitamin D deficiency is more common in children with ADHD. Vitamin D receptors are found in brain areas involved in attention and executive function. While evidence is still emerging, correcting deficiency may be helpful.
Expected timeline: Omega-3s: 8-12 weeks. Zinc/Iron (if deficient): 4-8 weeks. Magnesium: 2-4 weeks. Best approach is to test for deficiencies and correct them while continuing evidence-based treatments.