Dietary Supplement Label Database

L-Tryptophan 500 mg

Off market
Photo of the Source Naturals L-Tryptophan 500 mg label
Photo of the label, from the NIH's original record · Open full size ↗
Supplement Facts
Serving Size 1 Tablet(s)
Servings Per Container 40
Amount Per Serving% Daily Value
Calcium (as Dibasic Calcium Phosphate)48 mg4%
IronIron Note: naturally occurring0.6 mg3%
L-Tryptophan1.5 g†
Niacinequivalents25 mg
† Daily Value not established.

Other ingredients: Dibasic Calcium Phosphate, Stearic Acid, modified Cellulose Gum, Silica

% Daily Values for: Adults and children 4 or more years of age.

Where this label comes from

An original label of the NIH's Dietary Supplement Label Database, entered there on 22 March 2023, shown here as it was entered. The NIH's record · picture of the label (PDF)

General information

Product name
L-Tryptophan 500 mg
Brand
Source Naturals
Barcode (UPC)
0 21078 01980 0
Net contents
120 Tablet(s)
Market status
Off market
DSLD ID
273570

Classification

Supplement form
Tablet or Pill
Product type
Other Combinations
Claim types on the label
Nutrient, All Other, Structure/Function
Intended for
Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy Free

Label statements

FDA Statement of Identity: Dietary Supplement

Formula: Contains: The essential amino acid L-tryptophan helps support relaxation, restful sleep, and feeling better. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response. 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. Source Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.

Directions: Suggested Use: 1 tablet three times daily, between meals and preferably with fruit juice. To support restful sleep, take 3 tablets before bed.

Precautions: Pregnant or Nursing or Prescription Medications: Caution: 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: Store in a cool, dry place.

Precautions: All Other: Do not use if either tamper-evident seal is broken or missing.

Precautions: Children: Keep out of the reach of children.

Formulation: Does NOT Contain: Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no preservatives, or artificial color, flavor or fragrance.

Precautions: Children: Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of the reach of children. In case of accidental overdose, call a doctor or poison control center immediately.

Formulation: Does NOT Contain: Non GMO Validated

Brand information

Manufactured for:: Source Naturals, Inc., Santa Cruz, CA

Labels only: each label is shown as printed on the bottle, with no grades, rankings or advice. A label in this database is not an endorsement of the product. Read the label on the bottle you buy: makers change their formulas. Reverse Age Lab is not affiliated with, or endorsed by, the National Institutes of Health or its Office of Dietary Supplements. The original labels come from the NIH’s public-domain data; the labels since are read by us. Search the Dietary Supplement Label Database.