Protocol · Mental Health
Generalized Anxiety Disorder (GAD) Protocol
Kava (Piper methysticum) and Passionflower (Passiflora incarnata) are the core of this stack, with 6 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Generalized Anxiety Disorder (GAD).
We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.
The stack
8 supplements · 7 graded · 3 confirmed studies
| Grade | Supplement | Amount listed | Why it’s in the stack | Evidence on file | Shop |
|---|---|---|---|---|---|
| Primary stackThe core of this protocol | |||||
| Kava (Piper methysticum) | Amount listed: 120–250 mg kavalactones daily (divided doses) | Kavalactones modulate GABA receptors and reduce neural excitability; demonstrates anxiolytic effects comparable to some prescription medications
| Grade C for Aggression141 people | ||
Confirmed studies for Kava (Piper methysticum) (titles as PubMed lists them) | |||||
| Passionflower (Passiflora incarnata) | Amount listed: 400–900 mg extract daily or 1–2 g dried herb as tea | Enhances GABA activity and modulates serotonin; reduces anxiety symptoms without significant sedation
| Grade B for Anxiety Symptoms6 studies · 66 people | ||
Confirmed studies for Passionflower (Passiflora incarnata) (titles as PubMed lists them) | |||||
| Supporting stackListed as additions to the core | |||||
| Ashwagandha (Withania somnifera) | Amount listed: 300–600 mg standardized extract daily (5% withanolides) | Adaptogen that reduces cortisol levels and modulates the HPA axis; decreases stress-related anxiety symptoms
| Grade C for Anxiety Symptoms5 studies · 86 people | ||
| L-Theanine | Amount listed: 200–400 mg daily | Amino acid from tea that promotes alpha brain waves and calm alertness; reduces anxiety without sedation
| Grade C for Anxiety Symptoms2 studies · 46 people | ||
| Saffron | Amount listed: 30 mg standardized extract daily | Contains crocin and safranal which modulate serotonin and GABA; demonstrates anxiolytic and mood-enhancing effects
| Grade C for Anxiety Symptoms6 studies · 40 people | ||
| Holy Basil (Tulsi) | Amount listed: 300–600 mg extract daily or 2–3 cups tea | Ayurvedic adaptogen that normalizes cortisol and supports stress resilience; reduces anxiety and improves stress response
| Grade C for Anxiety Symptoms1 study · 35 people | ||
| Gotu Kola (Centella asiatica) | Amount listed: 500–1,000 mg daily or 60–180 mg triterpenes | Modulates GABA and reduces corticosterone; has anxiolytic effects with long history in Ayurvedic medicine
| Grade C for Anxiety Symptoms1 study · 33 people | ||
| Magnesium | Amount listed: 200–400 mg daily (glycinate or threonate forms preferred) | Regulates the HPA axis and NMDA receptors; deficiency associated with anxiety symptoms; supplementation may reduce anxiety | Not graded yet | ||
Shop the evidence-backed picks
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 supplement in this protocol graded A or B. Each opens third-party tested products, matched to the dose above where we can.
- Grade B
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How this protocol works
In plain language
Generalized Anxiety Disorder (GAD) is characterized by persistent, excessive worry about multiple aspects of life that's difficult to control. Physical symptoms often include muscle tension, restlessness, fatigue, difficulty concentrating, irritability, and sleep problems. GAD affects about 3-6% of people and can significantly impair quality of life. While cognitive-behavioral therapy (CBT) and medications are first-line treatments, natural supplements can provide meaningful support for many people.
IMPORTANT: GAD is a medical condition that benefits from professional treatment. These supplements can be used alongside therapy and/or medication. Always inform your healthcare provider about supplements, as some can interact with medications.
- Kava is one of the most well-studied natural anxiolytics. Its active compounds (kavalactones) interact with GABA receptors similar to how benzodiazepines work, but without the same addiction potential or cognitive impairment. A Cochrane review found kava significantly reduces anxiety symptoms. Use a high-quality preparation from a reputable source, and limit to 6-8 weeks of continuous use. Avoid if you have liver problems or take medications that affect the liver.
- Passionflower has been used traditionally for centuries to calm anxiety and promote sleep. It enhances GABA activity in the brain, producing a calming effect without significant sedation during the day. Studies show it can be as effective as some benzodiazepines for generalized anxiety, with fewer side effects. It's particularly helpful for anxiety-related sleep difficulties.
- Ashwagandha is an Ayurvedic adaptogen that helps the body cope with stress. It works by modulating cortisol (the stress hormone) and supporting the hypothalamic-pituitary-adrenal (HPA) axis. Studies show it significantly reduces anxiety and stress scores. It's particularly helpful when anxiety is accompanied by chronic stress or burnout.
- L-Theanine is an amino acid found in tea that produces a unique state of calm alertness. It increases alpha brain waves (associated with relaxed focus) and modulates neurotransmitters like GABA, dopamine, and serotonin. Unlike sedatives, it reduces anxiety without impairing cognitive function or causing drowsiness. It works quickly—often within an hour.
- Saffron contains compounds that affect serotonin metabolism and GABA receptors. Studies show it has both anxiolytic and antidepressant effects. Since anxiety and depression often co-occur, saffron may be particularly helpful for those experiencing both.
- Holy Basil (Tulsi) is considered a sacred plant in Ayurveda with adaptogenic properties. It helps normalize cortisol levels and supports resilience to physical and emotional stress. Studies show it reduces anxiety symptoms and improves overall well-being.
- Gotu Kola is another Ayurvedic herb traditionally used for anxiety. It modulates GABA and reduces stress hormones. Studies show it can reduce anxiety and the exaggerated startle response that many anxious people experience.
- Magnesium plays a crucial role in regulating the stress response. Deficiency (common in modern diets) is associated with increased anxiety. Supplementation can reduce anxiety symptoms, particularly in those who are deficient. The glycinate and threonate forms are well-absorbed and have calming effects.
Expected timeline: L-theanine: within hours. Kava: 1-4 weeks. Passionflower: 1-4 weeks. Ashwagandha: 4-8 weeks. Magnesium: 2-4 weeks. These work best combined with therapy, stress management techniques, and lifestyle modifications.