What is L-Tryptophan used for?

L-Tryptophan is an essential amino acid used as a supplement mainly to support sleep and mood. It is a precursor to serotonin and melatonin, but evidence for treating clinical depression is limited.

How does L-Tryptophan affect sleep?

L-Tryptophan can support sleep by increasing availability of serotonin and melatonin pathways. Some people use it to help with falling asleep or improving sleep continuity.

What is a typical L-Tryptophan dosage?

Common supplemental doses are around 500–1000 mg, often taken in the evening for sleep support. Start low and follow product directions or clinician guidance.

What are the side effects of L-Tryptophan?

Possible side effects include drowsiness, nausea, headache, and dizziness. Stop use and seek medical advice if you develop unusual symptoms or allergic reactions.

Can L-Tryptophan interact with antidepressants?

Yes. Combining L-Tryptophan with serotonergic medications or supplements can increase the risk of serotonin syndrome, so consult a clinician before combining with SSRIs, SNRIs, MAOIs, or similar agents.

Bilimsel destekli 313 besin

3251 kaynak incelendi

Kanıta dayalı bilgiler

Hedefe veya kategoriye göre keşfet

Besin bul

Popüler seçimler

Eicosapentaenoic acid (EPA)Vitamin D3 Docosahexaenoic acid (DHA)Zinc (Bisglycinate)

Toplam 313 besin

Vitamin B

Vitamin B1 (Thiamine)

Vitamin B2 (Riboflavin)

Vitamin B3 (Niacin)

Vitamin B5 (Pantothenic Acid)

Vitamin B6 (Pyridoxine)

Vitamin B7 (Biotin)

Vitamin B9 (Folic Acid)

Vitamin B12 (Methylcobalamin)

Vitamin B12 (Cobalamin)

Vitamin A & Carotenoids

Vitamin C

Vitamin D

Vitamin E

Vitamin K

Vitaminoids

Trimethylglycine (Betaine)

NMN (Nicotinamide Mononucleotide)

Pyrroloquinoline Quinone (PQQ)

D-Chiro-Inositol

Coenzym Q10 (Ubiquinone)

Betaine HCL

Nicotinamide Riboside

Vitamin B8 (Myo-Inositol)

Choline

Citicoline (CDP-Choline)

Coenzyme Q10 (Ubiquinol)

Calcium

Calcium Alpha-Ketoglutarate

Magnesium

Magnesium Bisglycinate

Magnesium L-Threonate

Trace Minerals

Copper (Bisglycinate)

Chromium Picolinate

Manganese (Bisglycinate)

Zinc

Pentadecanoic Acid (C15:0)

Phosphatidylserine

R-Alpha Lipoic Acid

Black Cumin Oil

Extra Virgin Olive Oil

Ceratiq wheat oil extract

Phospholipids

Algae Oil

Fish Oil

Conjugated Linoleic Acid

Gamma-Aminobutyric Acid

Alpha-Linolenic Acid

Gamma-Linolenic Acid

Omega-3

Docosapentaenoic acid (DPA)

Eicosapentaenoic acid (EPA)

Docosahexaenoic acid (DHA)

AminoMar

Acetyl-L-Carnitine

PABA (para-aminobenzoic acid)

Essential Amino Acids

Conditionally Essential Amino Acids

L-Theanine

Non-Essential Amino Acids

Beta-Alanine

L-Cysteine Hydrochloride

Amino Acid Derivative

Taurine

Creatine (Hydrochloride)

L-Arginine Alpha-Ketoglutarate

Creatine (Monohydrate)

Akkermansia muciniphila

Lactobacillus Reuteri

Probiotics

Bifidobacterium longum BB536

Prebiotics

Stinging Nettle Extract

Pomegranate Polyphenols

Red Beet Extract

Pine Extract (Pycnogenol)

Oligomeric Proanthocyanidins (OPC)

Ashwagandha Root Extract

Methylsulfonylmethane (MSM)

Citrus Sinensis Extract

Horsetail Stem Extract

Flax Seed Extract

Sulforaphane Glucosinolate

Garlic Extract

Black Pepper

Apricot Kernel Extract

Lovage

Spiny Rest Harrow Root Extract

Juniper Berry Extract

Bearberry Leaf Extract

White Kidney Bean Extract

Lady’s Mantle Extract

Bitter Orange Extract

St. John’s Wort Extract

Japanese Knotweed Extract

Hydroxytyrosol/tyrosol

Olive extract

Sesame seed lignan extract

Broccoli Sprout Extract

Cranberry Extract

Flavon Glycosides

Gentian Root Extract

Griffonia simplicifolia Extract

Ajuga Turkestanica Extract

Amaranthus Leaf Extract

Banaba Extract

Boswellia Extract

Capsaicin

Cayenne Pepper Extract

Celery Extract

Ceylon Cinnamon Extract

Chamomile Extract

Charantin

Chinese Goldthread Root Extract

Citrus Aurantium Extract

Cocoa Extract

Cyanotis Arachnoidea Extract

Fadogia Agrestis Extract

Garcinia Cambogia Extract

Goldenrod Extract

Green Tea Extract

Guarana Extract

Horse Chestnut Extract

Grapefruit Seed Extract

Grape Vine Leaf Extract

Green Tea Polyphenols

Epigallocatechin Gallate (EGCG)

Adaptogens

Cordyceps sinensis extract

Ginsenoside

Lion's Mane (Hericium erinaceus)

Ginseng Extract

Cat's Claw (Uncaria tomentosa)

Arjuna (Terminalia arjuna)

Tribulus Terrestris Extract

Rhodiola rosea

Panax Ginseng Extract

Mushrooms

Reishi Extract

Astragalus Polysaccharides

Hyaluronic Acid

Glucosamine Sulfate

Chondroitin Sulfate

Glucosamine Sulphate 2KCL

L-Tryptophan

Orta düzeyde araştırma durumu·7/10

Daha yüksek puan, daha iyi bir çalışma durumuna işaret eder, ancak mutlaka etkinlik anlamına gelmez.

L-Tryptophan is an essential amino acid supplement explored for supporting sleep and mood, with established safety risks and limited evidence for clinical depression.

Sleep Improvement Essential Nutrient Depression / Mood Enhancement Anxiety Relief

Doz aralığı

500–1000 mg

Once daily or divided into two doses

Gelir

Take with food, ideally with carbohydrate to improve uptake into the brain.

Yağda çözünmez.

En iyi zaman

Take in the evening for sleep benefits or with meals for mood support; high doses (>2g/day) should only be used under medical supervision.

Açıklama

L-Tryptophan is an essential amino acid obtained from the diet and available as a supplement. It serves as a precursor to serotonin, important for mood regulation and sleep, but its efficacy for depression and other clinical uses is unproven.

Avantajlar

Kanıt derecesi ile ana etkiler

Moderate

Kanıtla ilgili not

Effects on sleep and mood in healthy individuals are supported by moderate-quality studies; evidence for clinical depression or major psychiatric conditions is limited or inconclusive.

May improve sleep quality or continuity

Moderate

Supplemental L-Tryptophan may shorten sleep latency and improve sleep continuity, likely via serotonin and melatonin synthesis, especially at doses ≥1g.

Özellikle ilgili olduğu kişiler: People with mild sleep difficulties · Healthy adults

S4 · PubMed: Effects on Sleep S1 · Examine.com S2 · ODS/NIH Factsheet: Tryptophan

May support positive mood and help with mild anxiety

Moderate

Supplementing L-Tryptophan can modestly improve mood and reduce anxiety in some healthy adults by increasing serotonin levels in the CNS.

Özellikle ilgili olduğu kişiler: Individuals with occasional low mood · People seeking mild anxiety relief

S3 · PubMed: Clinical and Preclinical Evidence for L-Tryptophan S1 · Examine.com

Supports essential physiological functions

Strong

As an essential amino acid, L-Tryptophan is required for protein synthesis and must be obtained from food or supplements.

Özellikle ilgili olduğu kişiler: Everyone with inadequate dietary protein intake

S2 · ODS/NIH Factsheet: Tryptophan

Güvenlik ve Uyarılar

Önemli güvenlik bilgileri ve bilinen riskler

Sadece eğitim amaçlıdır • tıbbi tavsiye değildir

Short-term use of L-Tryptophan is generally well tolerated, but risks include sedation, rare hypersensitivity reactions (EMS), and serious drug interactions.

Uyarılar

Serious adverse events are rare but include eosinophilia-myalgia syndrome (EMS), historically linked to contaminated supplements.
Supplementation should be short-term except under medical guidance.
Adverse effects may include drowsiness, headache, gastrointestinal symptoms, and visual changes.
Do not use with serotonergic psychiatric medications (such as SSRIs, MAOIs, or SNRIs) due to the risk of serotonin syndrome.
Avoid if pregnant or breastfeeding unless under physician supervision, as safety at supplemental doses is unclear.
Avoid use if there is a history of eosinophilia-myalgia syndrome (EMS) linked to L-Tryptophan supplements.
Monitor for sedation or CNS depression if combined with sedatives or CNS depressants.

İlaçlarla bilinen etkileşimler

SSRIs, MAOIs, SNRIs, and other serotonergic medications
Sedatives/CNS depressants

Kontrendikasyonlar / özel dikkat gerektiren gruplar

Pregnancy or breastfeeding (unless supervised by a physician)
History of EMS from L-Tryptophan use
Current use of serotonergic psychiatric drugs or sedatives

etkileşimler

Etkin madde ↔ takviye / ilaç / gıda arasındaki önemli etkileşimler

L-Tryptophan has potentially serious interactions with serotonergic medications and sedatives; minor interactions with other amino acids for absorption may occur.