Stress

Stress (particularly distress) is excessive stimulation of the body's resources that eventually leads to negative symptoms such as fatigue or depression. Several supplements, such as adaptogens, are thought to reduce the development of stress.

Quick Answer

What it is

Stress (particularly distress) is excessive stimulation of the body's resources that eventually leads to negative symptoms such as fatigue or depression. Several supplements, such as adaptogens, are thought to reduce the development of stress.

Key findings

  • Grade A: Anxiety Symptoms (Kava)
  • Grade B: Cortisol Reduction (Magnolia Bark (Magnolia officinalis))
  • Grade C: Perceived Stress (B Vitamins)

Safety

No specific caution or interaction language was detected in the current summary/outcome notes.

ℹ️ Quick Facts

Quick Facts: Stress

  • Supplements Studied:26
  • Research Trials:34
  • Total Participants:5,934
  • Grade A Supplements:1
  • Top Supplement:Kava (A)
34 trials
5,934 ppts
26 supps · 126 outcomes

Evidence-Based Protocol

Supplement stack ranked by research quality

Strong Evidence

Primary Stack (Tier 1)

300-600mg standardized extract (KSM-66 or Sensoril) daily

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

25 studies | 2,000 participants
200-400mg daily or as needed

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

20 studies | 1,000 participants

Supporting Stack (Tier 2)

200-600mg standardized extract (3% rosavins, 1% salidroside) daily

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

15 studies | 800 participants
80-160mg Silexan (lavender oil capsule) daily

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

15 studies | 1,500 participants
300-600mg daily

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

10 studies | 500 participants
200-400mg daily (glycinate or threonate preferred)

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

15 studies | 800 participants
100-300mg daily

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

10 studies | 400 participants

How It Works

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.

Generated from peer-reviewed researchSchema v2.0

Supplements for Stress

Sorted by strength of evidence

AKava
1
↓Anxiety SymptomsImproves↑Sleep QualityImproves↓Stress Signs and SymptomsImproves
BLavender
1
↓Anxiety SymptomsImproves↓Blood PressureImproves↓Heart RateImproves
BLemon Balm
1
↓Anxiety SymptomsImproves↓Depression SymptomsImproves
BAshwagandha
1
↓Anxiety SymptomsImproves↓Blood glucoseImproves↓Stress Signs and SymptomsImproves
BMagnolia Bark (Magnolia officinalis)
1
↓Cortisol ReductionImproves
BTheanine
1
↓Anxiety SymptomsImproves↓Stress Signs and SymptomsImproves↑AttentionImproves
BRhodiola Rosea
1
↓Anxiety SymptomsImproves↓Depression SymptomsImproves↓Fatigue SymptomsImproves
CSaffron
1
↓Anxiety SymptomsImproves↓Depression SymptomsImproves↑MoodImproves
CB Vitamins
1
↓Perceived StressImproves
CProbiotics
1
Cognition↑Sleep QualityImproves
CTongkat Ali
1
↓CortisolImproves↑Stress Signs and SymptomsWorsens↑TestosteroneImproves
CBacopa Monnieri
1
↑AlertnessImproves↑AttentionImproves↑CortisolWorsens
CPQQ
1
↓Fatigue SymptomsImproves↓PainImproves↑Sleep QualityImproves
CPatchouli
1
↓CNS activityImproves
CCocoa Extract
1
↓AdrenalineWorsens↑Blood ViscosityImproves↑NoradrenalineImproves
DKanna
1
Reaction Time↓Stress Signs and SymptomsImproves
DGABA
1
↓Stress MarkersImproves
DAlcohol
1
Cortisol↑EstrogenWorsens↑ProlactinImproves
DMelatonin
1
Adrenaline↑AlertnessImproves↓Anxiety SymptomsImproves
DPhosphatidylserine
1
Blood Lactate (Exercise)↓CortisolImproves↑Growth HormoneImproves

Detailed Outcomes

Grade:
Effect:
Size:
Sort:
|
A
Anxiety Symptoms
Moderate Improvement
3 studies
moderate↓Improves
?
Sleep Quality
1 study
↑Improves
?
Stress Signs and Symptoms
1 study
↓Improves
B
Anxiety Symptoms
Moderate Improvement
19 studies
moderate↓Improves
?
Blood Pressure
6 studies
↓Improves
?
Heart Rate
6 studies
↓Improves
?
Cortisol
1 study
↓Improves
B
Anxiety Symptoms
Moderate Improvement
10 studies
moderate↓Improves
C
Blood glucose
Small Improvement
1 study
small↓Improves
?
Stress Signs and Symptoms
10 studies
↓Improves
?
Cortisol
3 studies
↓Improves
?
Blood Pressure
2 studies
↓Improves
?
Heart Rate
2 studies
↓Improves
?
Body Temperature
1 study
↑Improves
?
C-Reactive Protein (CRP)
1 study
↓Improves
?
Condition-Related Fatigue
1 study
↓Improves
?
Depression Symptoms
1 study
↓Improves
?
Dry Mouth Symptoms
1 study
↓Improves
?
High-density lipoprotein (HDL)
1 study
↑Improves
?
Insomnia Signs and Symptoms
1 study
↓Improves
?
Irritability
1 study
↓Improves
?
Low-density lipoprotein (LDL)
1 study
↓Improves
?
Serum DHEA
1 study
↑Improves
?
Sleep Quality
1 study
↑Improves
?
Social Functioning
1 study
↑Improves
?
Subjective Well-Being
1 study
↑Improves
?
Total cholesterol
1 study
↓Improves
?
Triglycerides
1 study
↓Improves
?
vLDL-C
1 study
↓Improves
?
Weight
1 study
↓Improves
?
Fatigue Symptoms
1 study
↑Worsens
B
Anxiety Symptoms
Large Improvement
5 studies
large↓Improves
?
Depression Symptoms
3 studies
↓Improves
B
Anxiety Symptoms
Small Improvement
3 studies
small↓Improves
?
Stress Signs and Symptoms
4 studies
↓Improves
?
Attention
1 study
↑Improves
?
Cognition
1 study
↑Improves
?
Cortisol
1 study
↓Improves
?
Depression Symptoms
1 study
↓Improves
?
Executive Function
1 study
↑Improves
?
Heart Rate
1 study
↓Improves
?
Mood
1 study
↑Improves
?
Motor Speed
1 study
↑Improves
?
Salivary Alpha-Amylase
1 study
↑Improves
?
Sleep Disturbance Signs and Symptoms
1 study
↓Improves
?
Sleep Duration
1 study
↑Improves
?
Sleep Latency
1 study
↓Improves
?
Sleep Quality
1 study
↑Improves
?
Verbal Fluency
1 study
↑Improves
?
Verbal Memory
1 study
↑Improves
?
Working Memory
1 study
↑Improves
B
Anxiety Symptoms
Small Improvement
2 studies
small↓Improves
?
Depression Symptoms
3 studies
↓Improves
?
Fatigue Symptoms
3 studies
↓Improves
?
Stress Signs and Symptoms
3 studies
↓Improves
?
Attention
2 studies
↑Improves
?
Cortisol
1 study
↓Improves
?
Libido
1 study
↑Improves
?
Reaction Time
1 study
↑Improves
?
Sexual Function
1 study
↑Improves
?
Sleep Deprivation Symptoms
1 study
↓Improves
?
Sleep Quality
1 study
↑Improves
?
Social Functioning
1 study
↑Improves
?
Subjective Well-Being
1 study
↑Improves
?
Vigor/Activity
1 study
↑Improves
B
Cortisol Reduction
RCT (n=56, 4 weeks): Relora (magnolia+phellodendron 250mg 3x/day) reduced salivary cortisol exposure by 18% (p<0.05) vs placebo in moderately stressed subjects. Evening cortisol levels particularly reduced.
moderate↓Improves
C
Perceived Stress
Meta-analysis: SMD 0.23 (0.02-0.45, p=0.03) benefit for stress
12 studies
small↓Improves
C
Stress Tolerance
Moderate Improvement
4 studies
moderate↓Improves
D
Cortisol Modulation
Small Effect
2 studies
small↓Improves
C
Anxiety Symptoms
Small Improvement
1 study
small↓Improves
?
Depression Symptoms
1 study
↓Improves
?
Mood
1 study
↑Improves
?
Sleep Quality
1 study
↑Improves
?
Stress Signs and Symptoms
1 study
↓Improves
C
Cognition
Mixed effect
1 study
?
Sleep Quality
1 study
↑Improves
C
Cortisol
Small Decrease
1 study
small↓Improves
?
Stress Signs and Symptoms
1 study
↑Worsens
?
Testosterone
1 study
↑Improves
C
Alertness
Small Improvement
1 study
small↑Improves
?
Attention
1 study
↑Improves
?
Cortisol
1 study
↑Worsens
?
Stress Signs and Symptoms
1 study
↑Worsens
C
Fatigue Symptoms
Small Improvement
1 study
small↓Improves
?
Pain
1 study
↓Improves
?
Sleep Quality
1 study
↑Improves
?
Stress Signs and Symptoms
1 study
↓Improves
C
CNS activity
Small Decrease
1 study
small↓Improves
C
Adrenaline
Small Decrease
1 study
small↓Worsens
?
Blood Viscosity
1 study
↑Improves
?
Noradrenaline
1 study
↑Improves
D
Stress Markers
Limited evidence for stress reduction
3 studies
small↓Improves
D
Reaction Time
No effect
1 study
none
?
Stress Signs and Symptoms
1 study
↓Improves
D
Cortisol
No effect on cortisol
1 study
none
?
Estrogen
1 study
↑Worsens
?
Prolactin
1 study
↑Improves
?
Testosterone
1 study
↑Improves
D
Adrenaline
No effect
1 study
none
?
Alertness
1 study
↑Improves
?
Anxiety Symptoms
1 study
↓Improves
?
Attention
1 study
↑Improves
?
Cortisol
1 study
↓Improves
?
Memory
1 study
↑Improves
?
Noradrenaline
1 study
↑Improves
D
Blood Lactate (Exercise)
No effect
1 study
none
?
Cortisol
1 study
↓Improves
?
Growth Hormone
1 study
↑Improves
?
Prolactin
1 study
↑Improves
D
Stress Signs and Symptoms
No effect
1 study
none
D
Subjective Well-Being
No effect
1 study
none
?
Heart Rate
2 studies
↓Improves
?
Anger
Small Detriment
1 study
small
?
Attention
1 study
↑Improves
?
Blood Pressure
1 study
↓Improves
?
Cortisol
1 study
↓Improves
?
Depression Symptoms
1 study
↓Improves
?
Fatigue Symptoms
1 study
↓Improves
?
Processing Accuracy
1 study
↑Improves
?
Stress Signs and Symptoms
1 study
↓Improves
?
Subjective Well-Being
1 study
↑Improves
?
Vigor/Activity
1 study
↑Improves
?
Working Memory
1 study
↑Improves
?
Anxiety Symptoms
1 study
↓Improves
?
Stress Signs and Symptoms
1 study
↓Improves
?
Stress Signs and Symptoms
1 study
↓Improves

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