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L-Tryptophan 1000 mg

product on market Tablet or Pill SuperSmart Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade
Label

Product Label

Label for L-Tryptophan 1000 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
60
Servings
Amino acid/Protein
Product Type
0%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

1000 mg
Market median: 500.0mg (70 products)

Other Ingredients

Acacia Gum Fructo-Oligosaccharide
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Info

Product Information

Directions for Use

Recommended use: Adults. Take one to two tablets a day.

Recommended use: Adults. Take one to two tablets a day.

Warnings & Precautions

Do not take tryptophan alongside 5-HTP which also raise serotonin levels, without the advice of your therapist.

Precautions: Do not exceed the recommended daily dose. This product is a nutritional supplement and should not replace a varied, balanced diet.

Keep out of childrens' reach.

As with any nutritional supplement, you should consult a health professional before taking this product if you are pregnant, breastfeeding or have a health problem.

Formulation Notes

L-Tryptophan 1000 mg per day

Each tablet contains 500 mg of tryptophan.

Additional Information

Store away from direct light, heat and humidity.

Metadata

Product Details

UPC / SKU5 453003 824411
DSLD Entry Date2023-05-24
Product TypeAmino acid/Protein
FormTablet or Pill
DSLD ID285312
Data Updated2026-04-11
Research

Research Evidence

29
Research Sources
48
Avg Quality
19
Rct
5
Meta Analysis
3
Systematic Review
2
Clinical Trial
B Prebiotic and probiotic supplementation and the tryptophan-kynurenine pathway: A systematic review and meta analysis
Meta Analysis Neuroscience and biobehavioral reviews 2021 PubMed DOI
B Tryptophan and 5-hydroxytryptophan for depression
Systematic Review The Cochrane database of systematic reviews 2001 PubMed
B Tryptophan and 5-hydroxytryptophan for depression
Systematic Review The Cochrane database of systematic reviews 2002 PubMed
B The impact of tryptophan supplementation on sleep quality: a systematic review, meta-analysis, and meta-regression
Meta Analysis Nutrition reviews 2022 PubMed DOI
B No effects of acute tryptophan depletion on anxiety or mood in weight-recovered female patients with anorexia nervosa
Rct European archives of psychiatry and clinical neuroscience 2023 PubMed DOI
C The association between tryptophan levels and postpartum mood disorders: a systematic review and meta-analysis
Meta Analysis BMC psychiatry 2022 PubMed DOI
C A systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning
Systematic Review Journal of dietary supplements 2021 PubMed DOI
C Comparison between Acupuncture and Nutraceutical Treatment with Migratens® in Patients with Fibromyalgia Syndrome: A Prospective Randomized Clinical Trial.
Rct Nutrients PubMed DOI
C Intake of Lactiplantibacillus plantarum HEAL9 Improves Cognition in Moderately Stressed Subjects: A Randomized Controlled Study.
Rct Nutrients PubMed DOI
C Are tryptophan and 5-hydroxytryptophan effective treatments for depression? A meta-analysis
Meta Analysis The Australian and New Zealand journal of psychiatry 2002 PubMed
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.