Insomnia

Insomnia is a common sleep condition which involves trouble falling asleep, staying asleep, or both. The resulting insufficient or poor-quality sleep can lead to worsened quality of life and functional impairments.

Quick Answer

What it is

Insomnia is a common sleep condition which involves trouble falling asleep, staying asleep, or both. The resulting insufficient or poor-quality sleep can lead to worsened quality of life and functional impairments.

Key findings

  • Grade A: Insomnia Signs and Symptoms (Melatonin)
  • Grade B: Alertness (Ashwagandha)
  • Grade C: Depression Symptoms (Probiotics)

Safety

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

ℹ️ Quick Facts

Quick Facts: Insomnia

  • Supplements Studied:11
  • Research Trials:21
  • Total Participants:13,294
  • Grade A Supplements:1
  • Top Supplement:Melatonin (A)
21 trials
13,294 ppts
11 supps · 41 outcomes

Evidence-Based Protocol

Supplement stack ranked by research quality

Strong Evidence

Primary Stack (Tier 1)

0.5-5mg before bed

Binds to MT1/MT2 receptors in suprachiasmatic nucleus to regulate circadian rhythm and promote sleep onset

35 studies | 2,240 participants
400-500mg before bed (glycinate form)

Activates GABA receptors, reduces cortisol, and regulates melatonin production through pineal gland modulation

8 studies | 500 participants

Supporting Stack (Tier 2)

3g before bed

Lowers core body temperature through peripheral vasodilation and enhances NMDA receptor function to improve sleep quality

3 studies | 145 participants
200mg before bed

Increases alpha brain wave activity and GABA production, promoting relaxation without sedation

4 studies | 170 participants

How It Works

Insomnia involves disruption of your natural sleep-wake cycle, often due to stress, irregular schedules, or age-related changes in sleep hormones. Your brain's ability to transition into sleep depends on proper melatonin signaling, reduced cortisol, and activation of calming GABA pathways.

Melatonin directly signals to your brain that it's time to sleep. It works best for sleep onset insomnia and circadian rhythm disruptions. Lower doses (0.5-1mg) are often as effective as higher doses and reduce morning grogginess.
Magnesium (glycinate or bisglycinate form) calms the nervous system by activating GABA receptors and helps your body produce melatonin naturally. Many adults are deficient, and correcting this can significantly improve sleep.
Glycine works uniquely by lowering your core body temperature—a necessary step for falling asleep. It also improves sleep quality, helping you wake feeling more refreshed.
L-Theanine promotes relaxing alpha brain waves without causing drowsiness. It's particularly helpful for those whose racing thoughts prevent sleep.

Expected timeline: Melatonin works from the first night. Magnesium and glycine show cumulative benefits over 2-4 weeks. Full sleep quality improvement typically occurs within 4-6 weeks.

Generated from peer-reviewed researchSchema v2.0

Detailed Outcomes

Grade:
Effect:
Size:
Sort:
|
A
Insomnia Signs and Symptoms
Large Improvement
4 studies
largeImproves
?
Sleep Quality
3 studies
Improves
B
Alertness
Small Improvement
3 studies
smallImproves
?
Sleep Quality
5 studies
Improves
?
Anxiety Symptoms
3 studies
Improves
?
Sleep Duration
3 studies
Improves
?
Sleep Efficiency
3 studies
Improves
?
Sleep Latency
3 studies
Improves
?
Quality of Life
2 studies
Improves
C
Depression Symptoms
Small Improvement
2 studies
smallImproves
?
Sleep Quality
6 studies
Improves
?
Sleep Duration
3 studies
Improves
?
Sleep Latency
3 studies
Improves
?
Sleep Efficiency
2 studies
Improves
C
Heart Rate
Small Decrease
1 study
smallImproves
D
Heart Rate Variability
No effect
1 study
none
?
Sleep Quality
3 studies
Improves
?
Insomnia Signs and Symptoms
1 study
Improves
C
Sleep Latency
Small Improvement
1 study
smallImproves
?
Sleep Quality
2 studies
Improves
C
Insomnia Signs and Symptoms
Small Improvement
1 study
smallImproves
C
Menopausal Symptoms
Small Improvement
1 study
smallImproves
?
Sleep Latency
10 studies
Improves
?
Sleep Quality
6 studies
Improves
?
Sedation
1 study
Improves
C
Anxiety Symptoms
Moderate Improvement
1 study
moderateImproves
?
Depression Symptoms
1 study
Improves
?
Sleep Duration
1 study
Improves
?
Sleep Efficiency
1 study
Improves
?
Sleep Latency
1 study
Improves
D
Insomnia Signs and Symptoms
No effect
1 study
none
?
Serum Magnesium
2 studies
Improves
?
Sleep Duration
2 studies
Improves
?
Sleep Latency
2 studies
Improves
?
Restless Leg Syndrome Symptoms
1 study
Improves
?
Sleep Disturbance Signs and Symptoms
1 study
Improves
?
Sleep Efficiency
1 study
Improves
?
Sleep Quality
1 study
Improves
?
Anxiety Symptoms
1 study
Improves
?
Insomnia Signs and Symptoms
1 study
Improves
?
Sleep Quality
1 study
Improves

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