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Dr. Grey AI

Protocol · Mental Health

Stress Protocol

Ashwagandha and L-Theanine 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 Stress.

We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.

The stack

7 supplements · 6 graded · 6 confirmed studies

Amount listed in this protocol; not a recommendation.

Supplements in the Stress protocol, with the amount the protocol lists, the grade on file and confirmed studies
GradeSupplementAmount listedWhy it’s in the stackEvidence on fileShop
Primary stackThe core of this protocol
AshwagandhaAmount listed: 300–600 mg standardized extract (KSM-66 or Sensoril) daily

Adaptogen that modulates HPA axis, reduces cortisol, and enhances GABA signaling for stress resilience

  • Anxiety Symptoms: improves
  • Blood glucose: improves
  • Stress Signs and Symptoms: improves
  • Condition-Related Fatigue: improves
  • Cortisol: improves
Grade B for Anxiety Symptoms5 studies · 540 people
L-TheanineAmount listed: 200–400 mg daily or as needed

Amino acid that increases alpha brain waves, GABA, and serotonin for calm alertness without sedation

  • Anxiety Symptoms: improves
  • Attention: improves
  • Executive Function: improves
  • Sleep Quality: improves
  • Cortisol: improves
Grade B for Anxiety Symptoms2 studies · 51 people

Confirmed studies for L-Theanine (titles as PubMed lists them)

Supporting stackListed as additions to the core
Rhodiola RoseaAmount listed: 200–600 mg standardized extract (3% rosavins, 1% salidroside) daily

Adaptogen that regulates stress hormones, improves mental performance under stress, and reduces fatigue

  • Anxiety Symptoms: improves
  • Depression Symptoms: improves
  • Cortisol: improves
  • Social Functioning: improves
  • Stress Signs and Symptoms: improves
Grade B for Anxiety Symptoms198 people

Confirmed studies for Rhodiola Rosea (titles as PubMed lists them)

Lavender (Silexan)Amount listed: 80–160 mg Silexan (lavender oil capsule) daily

Linalool and linalyl acetate modulate GABA-A receptors and calcium channels for anxiolytic effects

  • Anxiety Symptoms: improves
  • Blood Pressure: improves
  • Cortisol: improves
  • Heart Rate: improves
Grade B for Anxiety Symptoms4 studies · 1,893 people
Lemon BalmAmount listed: 300–600 mg daily

Inhibits GABA transaminase, increasing GABA levels, with calming effects on mood and cognition

  • Anxiety Symptoms: improves
  • Depression Symptoms: improves
Grade B for Anxiety Symptoms2 studies · 435 people
MagnesiumAmount listed: 200–400 mg daily (glycinate or threonate preferred)

Regulates HPA axis and NMDA receptor activity; deficiency associated with heightened stress response

  • Stress Signs and Symptoms: improves
Not graded yet

Confirmed studies for Magnesium (titles as PubMed lists them)

PhosphatidylserineAmount listed: 100–300 mg daily

Phospholipid that blunts cortisol response to stress and supports cognitive function under pressure

  • Blood Lactate (Exercise): studied
  • Cortisol: improves
  • Growth Hormone: improves
  • Prolactin: improves
Grade D for Blood Lactate (Exercise)1 study · 9 people

Confirmed studies for Phosphatidylserine (titles as PubMed lists them)

Shop the evidence-backed picks

Fullscript collectionStress and mood: evidence-graded picksOpen on Fullscript

Or shop one supplement

The 5 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
  • Grade B
  • Grade B
  • Grade B

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

Stress is your body's response to demands or threats—real or perceived. While acute stress can be helpful, chronic stress keeps your body in 'fight or flight' mode, elevating cortisol and causing fatigue, anxiety, poor sleep, and health problems. This protocol uses adaptogens and calming compounds to help your body better manage stress.

  • Ashwagandha is the most well-researched adaptogen for stress. It works by regulating the HPA (hypothalamic-pituitary-adrenal) axis—the body's central stress response system. Studies show it reduces cortisol by 20-30%, significantly lowers perceived stress, and improves resilience to future stressors. Unlike sedatives, it enhances energy during the day while improving sleep at night. KSM-66 and Sensoril are the most studied standardized extracts.
  • L-Theanine is an amino acid found naturally in tea. It promotes a state of 'calm alertness' by increasing alpha brain waves—the same brain state achieved during meditation. It also increases GABA, serotonin, and dopamine. Unlike sedatives, theanine reduces stress without causing drowsiness, making it ideal for daytime use. It works within 30-60 minutes and pairs exceptionally well with caffeine.
  • Rhodiola Rosea is an adaptogen that helps you perform better under stress. It reduces mental fatigue, improves concentration, and helps with stress-induced burnout. Studies in stressed healthcare workers showed significant improvements in fatigue, exhaustion, and cognitive function. It's best taken in the morning as it can be mildly stimulating.
  • Lavender (Silexan) is one of the few herbal remedies with evidence comparable to pharmaceutical anxiolytics. The oral lavender oil preparation Silexan has been shown to be as effective as lorazepam (Ativan) for anxiety, without the sedation or addiction risk. It works by modulating GABA receptors and calcium channels.
  • Lemon Balm has been used for centuries as a calming herb. It inhibits GABA transaminase, the enzyme that breaks down GABA, thereby increasing this calming neurotransmitter. Studies show it reduces stress-induced negative mood effects and can improve cognitive performance under stress.
  • Magnesium is often called the 'anti-stress mineral.' It's essential for regulating the stress response, and deficiency (common with chronic stress) amplifies the stress reaction. Supplementation can reduce subjective stress, particularly in those with low magnesium status. Glycinate and threonate forms are best absorbed and best tolerated.
  • Phosphatidylserine is a phospholipid that helps regulate the cortisol response to stress. Studies show it can blunt the cortisol spike from physical and mental stressors, making it useful for those who experience exaggerated stress responses.

Expected timeline: L-theanine works within 30-60 minutes. Ashwagandha and rhodiola: 2-4 weeks for full adaptogenic effects. Lavender: 2 weeks. Magnesium: 1-2 weeks if deficient.

Printed from drgrey.ai/protocols/stress. For education only; not medical advice. Talk to a clinician before starting any supplement.