L-Tryptophan 500 mg

Suggested Use

Suggested Usage: Take 1-2 capsules 2 to 3 times daily on an empty stomach; with final dose atbedtime; or as directed by your physician.

• 

  Now Foods L- Tryptophan 500mg 90 Veg Capsules

  Natures Food Markets4.6(46000)

  $17.99
• 

  Now L-Tryptophan

  NOW4.6(46000)Free delivery on $50+

  $21.99
• 

  NOW L-Tryptophan 500 mg 60 Vegicaps

  Covenant Health Products4.6(46000)Free delivery

  $21.99
• 

  (2 pack) NOW Foods L-Tryptophan, 500 mg, 60 Veg Capsules, Size: 4.35, Other

  Walmart - Fruitful Yield4.6(46000)Free delivery

  $29.72
• 

  NOW Foods L- Tryptophan Powder

  Walmart - DailyVita4.5(153)Free delivery

  $20.80
• 

  Nutricost L- Tryptophan Capsules

  Target4.6(16000)Free delivery on $35+

  $15.95
• 

  (2 pack) Now Foods L-Tryptophan 2 oz Powder, Size: 2.30

  Walmart - Fruitful YieldFree delivery

  $41.84
• 

  Best Naturals L- Tryptophan 500 Mg 120 Capsules

  Target4.4(61)Free delivery on $35+

  $26.95

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

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• The Vitamin Shoppe

  4.5 (138)

  Vitamin & supplements store

  9100 Tampa Ave, Northridge, CA 91324

  Directions(818) 718-6514

• Nutrishop Northridge

  4.9 (101)

  Vitamin & supplements store

  19240 Nordhoff St c1, Northridge, CA 91325

  Directions(818) 960-2307

• GNC

  3.6 (36)

  Vitamin & supplements store

  9301 Tampa Ave, Northridge, CA 91324

  Directions(818) 772-1386

• Shaklee Luluwellness

  5.0 (1)

  Vitamin & supplements store

  19138 Eccles St, Northridge, CA 91324

  Directions(818) 825-9153

• Alpha Health Support

  5.0 (3)

  Vitamin & supplements store

  9018 Balboa Blvd #120, Northridge, CA 91325

  Directions(844) 425-7426

• GNC

  4.4 (23)

  Vitamin & supplements store

  17234 Saticoy St, Van Nuys, CA 91406

  Directions(818) 708-7543

• The Vitamin Shoppe

  4.3 (93)

  Vitamin & supplements store

  10402 Sepulveda Blvd, Mission Hills, CA 91345

  Directions(818) 361-1768

• The Vitamin Shoppe

  4.4 (108)

  Vitamin & supplements store

  21436 Victory Blvd, Woodland Hills, CA 91367

  Directions(818) 883-2342

• Oral tryptophan activates duodenal aryl hydrocarbon receptor in healthy subjects: a crossover randomized controlled trial

  GH Rueda, N Causada-Calo… - American Journal …, 2024 - journals.physiology.org

  … ) intake while containing less than 500 mg of l-tryptophan per day. Subjects were provided … l-tryptophan supplementation, which is not surprising as this study was performed in healthy …

  202428 citations

• The FDA Ban of L-tryptophan: politics, profits and prozac

  DW Manders - Social Policy, 1995 - go.gale.com

  … use of amino acid nutritional supplement L-Tryptophan a few days … serotonin drugs - now among them L-Tryptophan itself - … extensive research on the medical politics of L-Tryptophan. …

  199511 citations

• l-Tryptophan

  BMD Knapp, MJ Cupp, TS Tracy - … Supplements: Toxicology and Clinical …, 2003 - Springer

  … supplements that were commercially available in the United States include Tryptophan PRN 350 mg capsules, L-tryptophan 500 mg … be of generally worse health than controls and …

  20035 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

  … syndrome,’’ which requires medical attention. The symptoms of … Trp has been studied for these actions for 5 decades now and … Effect of L-tryptophan on brain serotonin metabolism in …

  2012143 citations

• Supplementing healthy women with up to 5.0 g/d of L-tryptophan has no adverse effects

  C Hiratsuka, T Fukuwatari, M Sano, K Saito… - The Journal of …, 2013 - academic.oup.com

  … intake of the essential amino acid L-tryptophan (L-Trp) have … Indeed, pellagra remains a public health problem in many … the nutritional requirements for L-Trp (300 mg/d in adults) (12) …

  201379 citations

• A 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 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2024-07-25. DSLD Label ID: 314455. 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.