An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
  1. Home
  2. TRYPTOPHAN

TRYPTOPHAN

Chemical ID
TRYPTOPHAN
Ubiquitous
Yes
List of known dosages
Dosage
RDA=300-1,200 mg/day?

Select a Results View:

Download these results as:
CSV
EXCEL
PDF
List of chemical activities.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Activity Dosage Reference
Analgesic 750 mg/4x/day/orl/man Martindale's 29th
Antianxiety 500-1,000 mg/meal Werbach, M. 1993. Healing with Food. Harper Collins, New York, 443 pp.
Antidementia 3 g/day Werbach, M. 1993. Healing with Food. Harper Collins, New York, 443 pp.
Antidepressant 1-3 g/3x/day/orl/man Martindale's 29th
Antidyskinetic 2-8 g/orl/wmn/day Martindale's 29th
Antihypertensive J. Agri. & Food Chemistry, 36: 1079.
Antiinsomniac 1-3 g/day Werbach, M. 1993. Healing with Food. Harper Collins, New York, 443 pp.
Antimanic 12 g/man/day/orl Pizzorno, J.E. and Murray, M.T. 1985. A Textbook of Natural Medicine. John Bastyr College Publications, Seattle, Washington (Looseleaf).
Antimenopausal 6 g/day Werbach, M. 1993. Healing with Food. Harper Collins, New York, 443 pp.
Antimigraine 500 mg/man/4x/day Martindale's 29th
Antioxidant 125 ug/ml *
Antiparkinsonian 2 g 3 x/day Werbach, M. 1993. Healing with Food. Harper Collins, New York, 443 pp.
Antiphenylketonuric Martindale's 29th
Antiprostaglandin 250 pg/ml *
Antipsychotic 12 g/man/day Martindale's 29th
Antirheumatic Martindale's 29th
Antiscoliotic *
Carcinogenic CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses
Essential Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp.
Hypnotic Martindale's 29th
Download these results as:
CSV
EXCEL
PDF
List of chemical plants.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Plant Name Plant Part Low Parts Per Million High Parts Per Million Standard Deviation Reference
Ginkgo biloba Seed 710.0 1940.0 -0.5 USDA's Ag Handbook 8 and sequelae)
Glycine max Seed 5300.0 5795.0 0.8 USDA's Ag Handbook 8 and sequelae)
Helianthus annuus Seed 3480.0 15900.0 4.3 *
Helianthus tuberosus Tuber 1811.0 -0.8 Izadoost, M. & Robinson, T., Synergism & antagonism in the pharmacology of alkaloidal plants, pp 137-58 in Craker, L. & Simon, J., eds., Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture & Pharmacology, v. 2, 1987, 255pp.
Hordeum vulgare Seed 1000.0 3000.0 -0.1 Jim Duke's personal files.*
Hordeum vulgare Sprout Seedling *
Humulus lupulus Fruit List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979.
Ipomoea batatas Root 200.0 800.0 -0.1 *
Juglans cinerea Seed 3660.0 3786.0 0.2 *
Juglans nigra Seed 3220.0 3365.0 0.0 USDA's Ag Handbook 8 and sequelae)
Juglans regia Seed 1890.0 1960.0 -0.5 USDA's Ag Handbook 8 and sequelae)
Lablab purpureus Seed 880.0 7255.0 1.3 *
Lactuca sativa Leaf 90.0 1500.0 -1.5 *
Lagenaria siceraria Fruit 30.0 675.0 -0.2 *
Lens culinaris Seed 2510.0 2826.0 -0.2 ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes.
Lentinus edodes Fruit *
Lepidium meyenii Root 490.0 -1.1 Taylor, Leslie. 2005. The Healing Power of Rainforest Herbs. SquareOne Publisher, Garden City Park, NY. 519 pp.
Linum usitatissimum Seed 0.1 -1.1 *
Lupinus albus Seed 2890.0 3225.0 0.0 *
Lycopersicon esculentum Fruit 1.0 1157.0 0.4 *