L-Tryptophan 1000 mg

L-Tryptophan 1000 mg

Format:Tablet Quantity: 120 Tablet(s) · 120 servings
Goals
$18.80 $0.15 per serving

Product analysis

47 out of 100

L-Tryptophan 1000 mg may offer a small benefit for falling asleep, although the support is limited.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality20

The tryptophan form is unspecified, leaving its quality uncertain. That limits a confident comparison with more clearly described alternatives.

Ingredient Transparency63

The tryptophan amount is stated, making serving quantities easy to compare. Its exact form is not identified, leaving quality harder to judge.

Value For Money40

Value for money remains uncertain. The available cost information does not establish how the tryptophan serving compares with alternatives.

Customer Satisfaction81

Customer ratings are strongly favorable across a substantial number of reviews. They describe satisfaction rather than establish health benefits.

Product Focus55

Tryptophan has a possible role in falling asleep and mood-related nutrition. The modest support does not establish reliable stress relief or better sleep for most people.

Format
Tablet
Container
120 Tablet(s)
Per serving
$0.15
Customer rating
4.5 · 2,699 ratings
Report analysis

Goals

Sleep Support
Impact
Moderate effect
A+ Ingredient FitD+ PathwaysD+ EvidenceA+ Formulation Logic
Study evidence
Mood Support
Impact
Lower effect
A+ Ingredient FitF PathwaysF EvidenceA+ Formulation Logic
Study evidence
Stress Relief
Impact
High effect
A+ Ingredient FitD+ PathwaysC+ EvidenceA+ Formulation Logic
Tryptophan · 1000 mg
Study evidence

Ingredients

IngredientAmount per servingScore
L-Tryptophan
1000 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. A systematic review of the effect of L-tryptophan supplementation on mood and emotional functioning
    Kikuchi AM, Tanabe A, Iwahori Y · Journal of Dietary Supplements · 2021
    Systematic review11 studies pooledMood Support forTryptophan
  2. The impact of tryptophan supplementation on sleep quality: a systematic review, meta-analysis, and meta-regression
    Clarinda N Sutanto, Wen Wei Loh, Jung Eun Kim · Nutrition Reviews · 2022
    Meta-analysis4 studies pooledSleep Support forTryptophan