Net Contents
2 oz.; 57 Gram(s)
Serving Size
0.25 tsp [.5-1 g]
Servings Per Container
Not specified
Supplement Form
Powder
Bar Code (UPC/SKU)
7 33739 00263 1
Product Version
Not specified
Suggested Use
SUGGESTED USAGE: As a dietary supplement; take one or two 1/4 level teaspoons 2 to 3 times daily on an empty stomach; with final dose at bedtime; or as directed by your physician.
Market Reference
NOW Foods L- Tryptophan Powder
iHerb4.5(153)$22.03(2 pack) Now Foods L-Tryptophan 2 oz Powder, Size: 2.30
Walmart - Fruitful Yield$41.84Now L-Tryptophan
iHerb4.6(4600)$13.46Now Foods L- Tryptophan 500mg 90 Veg Capsules
PureFormulas.com4.6(4600)$16.96Now Foods, L-Tryptophan, Powder, 2 oz (57 g)
Silkrute$115.35L- Tryptophan Supplement Powder
Target4.9(119)$30.97(2 pack) NOW Foods L-Tryptophan, 500 mg, 60 Veg Capsules, Size: 4.35, Other
Walmart - Fruitful Yield4.6(4600)$29.72NOW L-Tryptophan 500 mg 60 Vegicaps
lazyacres.com4.6(4600)$23.99
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
Supreme Nutrition Greenville
5.0 (227)Vitamin & supplements store
1143 Woodruff Rd Ste A-2, Greenville, SC 29607
GNC
4.0 (55)Vitamin & supplements store
404 Harrison Bridge Rd G, Simpsonville, SC 29680
The Vitamin Shoppe
4.5 (147)Vitamin & supplements store
1129 Woodruff Rd Ste E, Greenville, SC 29607
All Natural Health & Beauty Center
4.6 (48)Vitamin & supplements store
101 E College St, Simpsonville, SC 29681
Garner's Natural Life - Woodruff
4.6 (105)Vitamin & supplements store
1601 Woodruff Rd Suite A-B, Greenville, SC 29607
The Vitamin Shoppe
4.5 (90)Vitamin & supplements store
4839 Calhoun Memorial Hwy US 123, Easley, SC 29640
Garner's Natural Life
4.6 (157)Vitamin & supplements store
27 S Pleasantburg Dr #20, Greenville, SC 29607
GNC
3.7 (74)Vitamin & supplements store
101 Verdae Blvd #500, Greenville, SC 29607
Research & Studies
Role of tryptophan in health and disease: Systematic review of the anti-oxidant, anti-inflammation, and nutritional aspects of tryptophan and its metabolites
RB Singh - World Heart Journal, 2019 - search.proquest.com
… L-Tryptophan is an essential amino acid that is needed for the synthesis of proteins and … It is now becoming clear that GI tract serotonin plays an important role in the brain-gut-axis and …
201958 citationsAnalysis, nutrition, and health benefits of tryptophan
M Friedman - International Journal of Tryptophan Research, 2018 - journals.sagepub.com
… Here, tryptophan refers to l-tryptophan and the isomeric form produced during food … in the absence of l-tryptophan; ie, the mice must meet the entire need for l-tryptophan from the d-…
2018398 citationsA systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning
AM Kikuchi, A Tanabe, Y Iwahori - Journal of dietary supplements, 2021 - Taylor & Francis
… and negative mood in healthy adult populations. We have targeted healthy adult men and … Now she works as an academic officer at LLC Okutoeru from 2018. Her research interests …
2021109 citationsHealth benefits of tryptophan in children and adults
BN Nayak, HS Buttar - J. Pharm. Sci. Technol. Manage, 2015 - pharmacy.nmims.edu
… This mini-review provides a brief overview of the role of L-tryptophan … It's now becoming clear that serotonin plays an important … trials suggest that L-tryptophan supplementation may be …
201512 citationsTryptophan: current status and future trends for oral administration
LD Kaufman, RM Philen - Drug safety, 1993 - Springer
… the ingestion of tryptophan (L-tryptophan)-containing products (… as these pose enormous public health threats to potentially … to EMS that are now being reported incorrectly as EMS. …
199327 citationsl-Tryptophan
BMD Knapp, MJ Cupp, TS Tracy - … Supplements: Toxicology and Clinical …, 2003 - Springer
… ill patients who might be of generally worse health than controls and therefore more likely to use a dietary supplement such as L-tryptophan. Of the patients identified with eosinophil …
20035 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2014-10-27. DSLD Label ID: 36998. 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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