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Amino Acids

L-Tryptophan

Serotonin and melatonin precursor; supports mood, sleep, and appetite regulation

Gabriel Score
75/ 100Good
CategoryAmino Acids
Applications5 conditions
FormsL-tryptophan
How it works

Serotonin and melatonin precursor; supports mood, sleep, and appetite regulation

Typical Dosage

500-2000mg/day (bedtime for sleep)

Used for
DepressionInsomniaAnxietyPMSAppetite control

Practical Guide

Available Forms

L-tryptophan

Natural Food Sources

  • •Turkey
  • •Chicken
  • •Eggs
  • •Cheese
  • •Nuts
  • •Seeds

Dosing should be individualized. Consult a qualified healthcare practitioner.

The Science

Evidence Base

Good75/100

Competes with other amino acids (take on empty stomach); precursor to 5-HTP and serotonin; 1989 contamination issue resolved

Works Well With

5-HTP (alternative pathway)B6MagnesiumVitamin C

Safety Profile

Interactions
  • Serotonin syndrome risk with SSRIs
  • May potentiate sedatives
Contraindications
  • Eosinophilia-myalgia syndrome (EMS) history
  • Concurrent SSRI use

Trusted Brands

ThornePure EncapsulationsNOW

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CategoryAmino Acids
Applications5
Gabriel Score75/100

Educational purposes only. Consult a qualified healthcare provider before starting any supplement protocol.

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