NOW Supplements
L-Tryptophan 500 mg Veg Capsules
73/100
SUPPIE SCORE
78/100
EFFICACY
Medium
SAFETY
82/100
CLEANLINESS
What Does L-Tryptophan 500 mg Veg Capsules Do?
This 500 mg L-Tryptophan supplement offers good efficacy for mood and sleep support with research-backed dosages, but medium safety due to interactions with antidepressants and drowsiness risks; overall safe for most healthy adults when used cautiously.
How does L-Tryptophan support serotonin production and mood regulation?
What is the recommended dosage of L-Tryptophan for sleep improvement?
Are there any dietary sources of L-Tryptophan that can complement this supplement?
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What Are the Benefits of L-Tryptophan 500 mg Veg Capsules?
Based on proven scientific research
Mood SupportStrong
Sleep QualityStrong
RelaxationModerate
Serotonin ProductionVery strong
Good For:
What Are the Side Effects of NOW Supplements L-Tryptophan 500 mg Veg Capsules?
Always consult your health practitioner if in doubt.
RiskMedium Risk
Overview
•L-Tryptophan at 500 mg per capsule is within safe daily limits (up to 2-3 g) for healthy adults, but consult a doctor for higher doses.
•Potential side effects include drowsiness and gastrointestinal upset; avoid operating machinery after intake.
•High risk of serotonin syndrome when combined with SSRIs, MAOIs, or other serotonergic drugs—do not use concurrently.
•Not recommended for pregnant or lactating women due to limited safety data; consult healthcare provider.
•No major allergens in this vegan formulation, but those with rice sensitivity should note rice flour as a filler.
•Long-term use may require monitoring for eosinophilia-myalgia syndrome, though rare with pharmaceutical-grade sources like this product.
Potential Side Effects
Negative Interactions
Inactive Ingredients
Low Risk
Low Risk
Low Risk
Low Risk
What Are the Ingredients in NOW Supplements L-Tryptophan 500 mg Veg Capsules?
L-Tryptophan (Free-Form)
500 mg
Hypromellose (cellulose capsule)
Rice Flour
Ascorbyl Palmitate
Stearic Acid (vegetable source)
Sources & References
Frequently Asked Questions
Common questions about NOW Supplements L-Tryptophan 500 mg Veg Capsules