VitaSuppTrack

L-Tryptophan Extra Strength 1500 mgnone

Other Combinations

Brand: BRI Nutrition

CapsuleOther CombinationsOn Market

Functions

Sleep, Mood & Stress
Click to view full label

Net Contents

120 Capsule(s)

Serving Size

1 Capsule(s)

Servings Per Container

40

Supplement Form

Capsule

Bar Code (UPC/SKU)

X001F6PNP1

Product Version

Not Present

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

2Active Ingredients

2 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1% Daily Value Coverage

1 ingredients report an established %DV per serving.

1Dietary Attributes

Label states: Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Contains

  • Milk
  • Egg
  • Wheat
  • Soy
  • Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 1 Capsule(s) · 3 per day

IngredientAmount Per Serving% Daily Value
Iron575 mcg3%
L-Tryptophan1.5 Gram(s)—

Percent Daily Values are based on 2,000 calorie diet.

Other Ingredients

GelatinMagnesium Stearate

Target Groups

Adult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested use: 1 capsult three times daily between meals and preferably with fruit juice or, to support restful sleep, take 3 capsules before bed.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

Warning: If you are pregnant, may become pregnant, breastfeeding, or are taking medications such as SSRIs or MAOIs, consult your health care professional before using this product.

Storage

Storage

Store in a cool, dry place.

Formulation

Formula re: Contains

What it is: The essential amino acid L-tryptophan helps support relaxation, restful sleep, and positive mood. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response and sleep/wake cycles. L-Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity. If needed, L-Tryptophan converts to niacin in the body, which supports circulation, a healthy nervous system, the metabolism of food, and the production of hydrochloric acid for the digestive system.

Formulation re: Other

Quality Value Service Purity

Formulation re: Other

Promotes & supports restful sleep Supports positive mood

Formula re: Contains

1500mg L-Tryptophan

Formulation re: Does NOT Contain

Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Formulation re: Other

100% Satisfaction Guarantee

FDA Statements

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Other Label Statements

General Statements: All Other Content

Please recycle.

Seals/Symbols

Sourced from a GMP Certified Facility Good Manufacturing Practice Quality Assured Made in USA

Manufacturer & Distributor

Distributor

BRI Nutrition LLC

1460 Broadway, New York, NY, 10036

Market Reference

$8.00 – $549.99· 34 listings

  • L-tryptophan Supplement Nighttime Formula

    Walmart - VitaPulse5.0(1)
    $17.95

  • L- Tryptophan 1500 mg Per Serving 90 Quick Release Capsules 2 Bottles

    Piping Rock Health Products4.4(54)
    $16.39

  • L- Tryptophan 1500mg 200 Vegetarian Caps

    Walmart - NusaPure5.0(4)
    $27.30

  • L-tryptophan 1500mg, 240 Capsules, Non-gmo And Gluten Free Supplement,

    eBay - kardiackid2164.8(30)
    $30.00

  • Life Extension Tryptophan Plus Capsules

    Best Price Nutrition4.6(626)
    $8.00Lowest

  • L-Tryptophan Pure Encapsulations

    Milltown Pharmacy4.6(40)
    $124.50

  • Brieofood L- Tryptophan 1000mg per Serving 240 Capsules

    Target
    $18.99

  • L-tryptophan 1500mg 240 Capsules Nighttime Formula Non-gmo Gluten Free

    eBay - kreemstore5.0(1)
    $38.99

Where to Buy Locally

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Research & Studies

  • Analysis, nutrition, and health benefits of tryptophan

    M Friedman - International Journal of Tryptophan Research, 2018 - journals.sagepub.com

    … of some of the reported health-promoting aspects of … Here, tryptophan refers to l-tryptophan and the isomeric form … the dietary supplementation of tryptophan to healthy adults (n …

    2018398 citations

  • The importance of quality specifications in safety assessments of amino acids: The cases of L-tryptophan and L-citrulline

    HA Oketch-Rabah, AL Roe, BJ Gurley… - … of nutrition, 2016 - academic.oup.com

    … , foods for special medical uses, foods for specified health uses, … EMS was reported in ;1500 individuals who were later found to … L-tryptophan supplementation does not improve running …

    201622 citations

  • Phytochemical and pharmacological perspectives of wheat grain and lupin seed

    L Liu - 2009 - researchportal.scu.edu.au

    … Southan and Dr Daniel Skylas from BRI Australia Ltd for the grain … consumed as human foods for their health benefits, which may be … L-tryptophan was isolated and identified as a potent …

    200913 citations

  • Effects and side effects associated with the non-nutritional use of tryptophan by humans

    JD Fernstrom - The Journal of nutrition, 2012 - academic.oup.com

    … additional amounts of Trp as an amino acid supplement. The … syndrome,’’ which requires medical attention. The symptoms of … Effect of L-tryptophan on brain serotonin metabolism in …

    2012143 citations

  • DIETE E FALSE CREDENZE

    IV CAPITOLO - di Firenze, 2025 - flore.unifi.it

    … , riconosciuto da tutti i membri di una data società, fondato su … in healthy older women receiving calcium supplementation: … L-tryptophan supplementation does not improve running …

    2025

  • Three Major Deficiency Diseases Harming Mankind (Protein, Retinoid, Iron) Operate Under Tryptophan Dependency

    Y Ingenbleek - Nutrients, 2025 - mdpi.com

    … nutritional hot spot of major public health problems harming mankind. Our review collects the main nutritional … The addition of dietary W supplementation should constitute a novel health …

    20251 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2025-03-25. DSLD Label ID: 326532. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.

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