Tryptophan

An essential amino acid that serves as a precursor to serotonin, melatonin, and niacin, playing important roles in mood regulation, sleep, and overall mental wellbeing
Amino Acids Essential Amino Acids Research: Extensive

Scientific Name

L-Tryptophan

Also Known As

Tryptophan L-Tryptophan Trp

Benefits

  • Supports healthy mood and emotional wellbeing
  • Promotes healthy sleep patterns
  • Serves as a precursor to serotonin and melatonin
  • May help manage occasional stress
  • Supports cognitive function

Common Forms

Capsules Tablets Powder Protein-rich foods

Safety Notes

Generally recognized as safe when used as directed. Should not be combined with certain antidepressants, particularly SSRIs or MAOIs, due to risk of serotonin syndrome. The FDA temporarily banned tryptophan supplements in 1989 due to a contamination issue with one manufacturer, but properly manufactured tryptophan supplements are now considered safe.

Related Products

No related products

Types of Tryptophan

L-Tryptophan

The biologically active form of tryptophan used in the human body and available as a dietary supplement

Amino acids Essential amino acids Research: Extensive
Available Forms:
Pure L-Tryptophan Tryptophan Complex

5-HTP

An intermediate metabolite between L-Tryptophan and serotonin, offering a more direct pathway to serotonin production

Amino acids Essential amino acids Research: Extensive
Available Forms:
Standard 5-HTP Enteric-Coated 5-HTP 5-HTP Complex

Tryptophan-Rich Protein

Protein sources specifically selected for their high tryptophan content

Amino acids Essential amino acids Research: Moderate
Available Forms:
Whey Protein Tryptophan Plant-Based Tryptophan Protein

N-Acetyl Tryptophan

An acetylated form of tryptophan with potentially enhanced bioavailability

Amino acids Essential amino acids Research: Limited
Available Forms:
N-Acetyl Tryptophan Supplement