Protocol · Mental Health
Obsessive-Compulsive Disorder (OCD) Support Protocol
N-Acetyl Cysteine and Inositol are the core of this stack, with 3 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Obsessive-Compulsive Disorder (OCD) Support.
We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.
The stack
5 supplements · 1 graded · 1 confirmed study
| Grade | Supplement | Amount listed | Why it’s in the stack | Evidence on file | Shop |
|---|---|---|---|---|---|
| Primary stackThe core of this protocol | |||||
| N-Acetyl Cysteine | Amount listed: 2,400–3,000 mg daily in divided doses | Modulates glutamate; studied as adjunct to standard OCD treatment
| Not graded yet | ||
| Inositol | Amount listed: 12–18 g daily in divided doses | May affect serotonin signaling; studied for anxiety and OCD
| Grade C for Anxiety Symptoms3 studies · 13 people | ||
Confirmed studies for Inositol (titles as PubMed lists them) | |||||
| Supporting stackListed as additions to the core | |||||
| Omega-3 Fatty Acids | Amount listed: 2–3 g EPA+DHA daily | Supports brain function; anti-inflammatory | Not graded yet | ||
| Vitamin D | Amount listed: 2,000–4,000 IU daily | Deficiency linked to various psychiatric conditions | Not graded yet | ||
| Magnesium | Amount listed: 300–400 mg daily | Supports nervous system function; may help with anxiety | Not graded yet | ||
Shop the evidence-backed picks
Support alongside medical care. These supplements are not a treatment for Obsessive-Compulsive Disorder (OCD). 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
Each opens third-party tested products, matched to the dose above where we can.
- Grade C
We earn from purchases made in our Fullscript store, and links to Fullscript, iHerb or Thorne carry our referral, so we may earn a commission at no extra cost to you. Grades come from the research and never change based on what we earn. Full disclosure
How this protocol works
In plain language
Obsessive-Compulsive Disorder (OCD) is a mental health condition characterized by unwanted, intrusive thoughts (obsessions) and repetitive behaviors (compulsions) performed to reduce anxiety.
OBSESSIONS (intrusive thoughts):
- Fear of contamination
- Need for symmetry/order
- Aggressive or taboo thoughts
- Fear of harming self or others
- Religious or moral concerns
- Doubt (did I lock the door?)
COMPULSIONS (repetitive behaviors):
- Excessive cleaning/handwashing
- Checking (locks, stove, etc.)
- Counting or repeating
- Arranging items
- Mental rituals
- Seeking reassurance
KEY FEATURES:
- Time-consuming (>1 hour/day)
- Causes significant distress
- Interferes with daily life
- Person often recognizes thoughts are irrational
FIRST-LINE TREATMENTS:
- Exposure and Response Prevention (ERP) - gold standard therapy
- SSRIs (fluoxetine, fluvoxamine, sertraline) - often at higher doses than for depression
- Combination of therapy + medication often most effective
CRITICAL: OCD requires professional treatment. Supplements are adjunctive only.
NAC* has the most evidence as an adjunct.
ERP therapy* is the most effective treatment.
SSRIs* often require higher doses for OCD than depression.
Expected timeline: ERP shows improvement over 12-20 sessions. SSRIs may take 8-12 weeks. NAC studied over 12+ weeks as adjunct.