L-Tryptophan 500 mg
by Source Naturals · Capsule
Supplement facts from the label of L-Tryptophan 500 mg by Source Naturals: Iron 600 mcg, L-Tryptophan 1.5 g.
Supplement Facts
| Ingredient | Per serving | % DV | Upper limit (adults) |
|---|---|---|---|
| Iron | 600 mcg | 3% | 45 mg · 4% at label max |
| L-Tryptophan | 1.5 g | — | — |
| └ Niacin | 25 mg | — | — |
Upper limits: NIH ODS Fact Sheets for Health Professionals. Compared only where the unit converts and the limit applies to the form on the label.
On the label
For: Adult (18 - 50 Years) · Gluten Free · Dairy Free
Claim types: Nutrient · All Other · Structure/Function
Formulation re: Other: Mood, relaxation, sleep
Formula re: Contains: 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
Suggested/Recommended/Usage/Directions: Suggested Use: 1 capsule three times daily, between meals and preferably with fruit juice. To support restful sleep, take an additional 3 capsules before bed.
Precautions re: All Other: Do not use if either tamper-evident seal is broken or missing.
Precautions re: Children: Keep out of the reach of children.
Storage: Store in a cool, dry place.
This page repeats what the label says and the official upper limits for healthy adults. It is not medical advice: ask a doctor, pharmacist or registered dietitian about your own intake, especially if you are pregnant, take medicines or have a health condition.
Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).