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Triptofano per Insonnia

A

Basato su 79 studi (3 meta-analyses, 4 RCTs) con 32,701 partecipanti totali. 54/79 studi mostrano effetti positivi.

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A

In sintesi

Tryptophan is supported by extensive research as a supplement that may help with insomnia, working through its natural role as a building block for sleep-regulating brain chemicals.

  • 79 studies with 32,701 participants provide a large evidence base
  • About 68% of studies show positive effects on insomnia
  • Tryptophan is the natural precursor to both serotonin and melatonin
  • Both supplementation and dietary approaches to increasing tryptophan have been studied

Key Study Findings

Review
Effects of L-tryptophan on sleepiness and on sleep.
Dose: 1 g or more vs: Placebo Effetto: Increase in subjective sleepiness; decrease in sleep latency
animal study
Compound Chaijin Jieyu Fang alleviates insomnia complicated with depression by reshaping actinobacteria to inhibit neuronal …
Dose: Compound Chaijin Jieyu Fang (CCJF) traditional Chinese medicine formula; dose not specified vs: Placebo Effetto: None None
Controlled Clinical Trial n=32 12 weeks Open-label
Efficacy and associated neurotransmitters of digital cognitive behavior therapy for atopic dermatitis: A comparative effectiveness …
Dose: None vs: Standard care alone Outcome: Itch and insomnia improvement in atopic dermatitis Effetto: None 0.0449 (itch), 0.0089 (insomni

Popolazione: Patients with atopic dermatitis and mild-moderate negative emotions

bioinformatics/animal study
Tryptophan metabolism-related gene CYP1B1 serves as a shared biomarker for both Parkinson's disease and insomnia.
Dose: Not applicable (bioinformatics analysis + animal experiment validation; no human intervention) vs: Placebo Effetto: None None
cross-sectional study n=165
Characteristics and influencing factors of gut microbiota in population with sleep disorders.
Dose: not applicable (observational study) vs: Placebo Effetto: None None
animal study 2 weeks
A non-pharmacological intervention for insomnia: tryptophan-fructooligosaccharides combination improves sleep in mice via anti-inflammation and gut …
Dose: tryptophan+FOS (TF) low dose: 10 mg/kg tryptophan + 500 mg/kg FOS; high dose: 20 mg/kg + 1000 mg/kg vs: Placebo Effetto: sleep duration improved by 81.0% (caffeine model, HD, p<0.001); 50.8% (PCPA model, HD, p<0.01); TNFα <0.001 (caffeine model); <0.01

Key Statistics

84

Studi

32969

Partecipanti

Positive

A

Grado

Referenced Papers

Journal of psychiatric … None 102 citazioni
Asia Pacific journal … 2024 1 citazioni
Journal of personalized … 2023 4 citazioni
Annual review of … 2021 149 citazioni
Frontiers in bioengineering … 2021 18 citazioni
Combinatorial chemistry & … 2021 16 citazioni
Nutricion hospitalaria 2021 3 citazioni
Journal of exercise … 2019 26 citazioni
The Cochrane database … 2019 24 citazioni
Pathologie-biologie 2014 74 citazioni
The Cochrane database … 2014 56 citazioni
Current signal transduction … 2014 41 citazioni
Profiles of drug … 2013 26 citazioni
Sleep medicine reviews 2011 317 citazioni
Journal of ethnopharmacology 2008 55 citazioni
Primary care 2002 43 citazioni
Zeitschrift fur arztliche … 2001 3 citazioni
Medical science monitor … 2000 11 citazioni
Bangladesh Medical Research … 2000
Psychosomatic medicine 1999 136 citazioni
Alternative medicine review … 1998 216 citazioni
Alternative medicine review … 1998
Wisconsin medical journal 1990
American family physician 1987
Annual review of … 1975 27 citazioni

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Dosaggi di uso comune

sleep:
250-1,000 mg, before bed

Limite massimo: Not established; previously recalled (1989) due to contamination

Dosaggi studiati nella ricerca

Dosaggio Durata Effetto N
1 g or more -- Positive --
Compound Chaijin Jieyu Fang (CCJF) traditional Chinese medicine formula; dose not specified -- Positive --
None 12 weeks Positive 32
Not applicable (bioinformatics analysis + animal experiment validation; no human intervention) -- Neutral --
not applicable (observational study) -- Neutral 165
tryptophan+FOS (TF) low dose: 10 mg/kg tryptophan + 500 mg/kg FOS; high dose: 20 mg/kg + 1000 mg/kg 2 weeks Positive --
Mediterranean diet (high adherence vs. low adherence); polyphenols, omega-3, fiber as key components -- Positive --
tryptophan, carbohydrates, omega-3, vitamins (B6, B12, folate, niacin, D, C, beta-carotene), mineral -- Positive --

Momento migliore per l'assunzione: 30-60 minutes before bed, ideally on a light stomach

Safety & Side Effects

Effetti collaterali segnalati

  • Nausea
  • Diarrhea
  • Drowsiness
  • Dry mouth
  • Blurred vision

Interazioni note

  • SSRIs/SNRIs — risk of serotonin syndrome
  • MAOIs — dangerous serotonin accumulation
  • Sedatives — additive drowsiness

Livello di assunzione massimo tollerabile: Not established; previously recalled (1989) due to contamination

Consultare sempre il proprio medico prima di iniziare qualsiasi integratore.Consultate sempre il vostro medico prima di iniziare qualsiasi integratore.

Frequently Asked Questions

Does Triptofano help with Insonnia?
Based on 84 studies with 32,969 participants, there is strong evidence from multiple clinical trials that Triptofano may support Insonnia management. Our evidence grade is A (Strong Evidence).
How much Triptofano should I take for Insonnia?
Studies have used various dosages. A commonly studied range is 250-1,000 mg, before bed. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Triptofano?
Reported side effects may include Nausea, Diarrhea, Drowsiness, Dry mouth. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Triptofano and Insonnia?
We rate the evidence as Grade A (Strong Evidence). This rating is based on 84 peer-reviewed studies with 32,969 total participants. The overall direction of effect is positive.

Related Evidence

Avvertenza FDA: Queste affermazioni non sono state valutate dalla Food and Drug Administration. I prodotti e le informazioni presenti su questo sito web non sono destinati a diagnosticare, trattare, curare o prevenire alcuna malattia. I gradi di evidenza presentati si basano sulla nostra analisi della ricerca pubblicata e sottoposta a revisione paritaria e non costituiscono consulenza medica. Consultate sempre il vostro medico prima di iniziare qualsiasi regime di integrazione.