Guarana 1 g

Guarana 1 g

Nutricost4.7 (295 ratings)
Format:Powder Quantity: 100 Gram(s) · 100 servings
Goals
$15.95 $0.15 per serving

Product analysis

49 out of 100

Guarana 1 g supplies a plant ingredient associated with alertness, but its unresolved caffeine content means the stimulant effect cannot be predicted.

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

Nutrient Quality20

The guarana preparation is unspecified, making its quality difficult to compare. The plant name alone does not identify a standardized extract.

Ingredient Transparency63

The guarana amount is disclosed, making the botanical serving visible. Its preparation and caffeine content remain unclear, so the plant quantity does not reveal the stimulant dose.

Value For Money40

Value for money cannot be established confidently for guarana. A reliable comparison for the amount of caffeine or a standardized extract is unavailable.

Customer Satisfaction75

Customer ratings are generally positive across several hundred reviews. The feedback gives a useful satisfaction picture without establishing alertness or cognitive effects.

Product Focus74

The formula centers on guarana for energy and attention-related aims. Unknown caffeine content and preparation prevent a predictable alertness effect from being assigned to the serving.

Format
Powder
Container
100 Gram(s)
Per serving
$0.15
Customer rating
4.7 · 295 ratings
Report analysis

Goals

Energy
Impact
High effect
A+ Ingredient FitD- PathwaysB- EvidenceA+ Formulation Logic
Study evidence
Guarana No effect 8 studies
Cognitive Support
Impact
High effect
A+ Ingredient FitC PathwaysB EvidenceA+ Formulation Logic
Study evidence
Guarana Supportive 11 studies

Ingredients

IngredientAmount per servingScore
Guarana
1000 mg 70
Gluten Free Adults 18–50 Vegetarian
Report overview
Guarana · 1000 mg OverallScore70
D- Composition And Label DisclosureA+ Composition And Label Disclosure
A serving provides 1000 mg of guarana. The caffeine percentage and extract ratio are not specified. The guarana supplies 220 mg of caffeine per serving. The available information does not establish a guarana-specific value comparison.
How this ingredient is rated

Composition and Label Disclosure40

The preparation is listed as guarana. The caffeine percentage and extract ratio are not specified.
Marker and Preparation Disclosure
The caffeine percentage and extract ratio are not specified.

Composition and Label Disclosure100

The serving contains 1000 mg of guarana. The guarana supplies 220 mg of caffeine per serving.
Amount and Label Disclosure
The guarana supplies 220 mg of caffeine per serving.

Commercial Price and Usability

A guarana-specific price comparison is unavailable.
Report alternatives

Sources

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

  1. Cognitive effects of guarana supplementation with maximal intensity cycling.
    Gurney T; Bradley N; Izquierdo D; Ronca F · The British journal of nutrition · 2023
    Randomized trial25 participantsCognitive Support forGuarana
  2. Cognitive Performance Enhancement Induced by Caffeine, Carbohydrate and Guarana Mouth Rinsing during Submaximal Exercise.
    Pomportes L; Brisswalter J; Casini L; Hays A; Davranche K · Nutrients · 2018
    Randomized trial24 participantsCognitive Support forGuarana
  3. Improved cognitive performance in human volunteers following administration of guarana (Paullinia cupana) extract: comparison and interaction with Panax ginseng.
    Kennedy DO; Haskell CF; Wesnes KA; Scholey AB · Pharmacology, biochemistry, and behavior · 2005
    Non-randomized trial28 participantsCognitive Support forGuarana
  4. The effect of plant active substances on cognitive function in healthy older adults: a systematic review and network meta-analysis of randomized controlled trials.
    Feng X; Fan S; Wei F · Frontiers in pharmacology · 2026
    Meta-analysis1,861 participants25 studies pooledCognitive Support forGuarana
  5. Effect of Guarana (Paullinia cupana) on Cognitive Performance: A Systematic Review and Meta-Analysis.
    Hack B; Penna EM; Talik T; Chandrashekhar R; Millard-Stafford M · Nutrients · 2023
    Meta-analysis328 participants8 studies pooledCognitive Support forGuarana
  6. Dietary supplements and fatigue in patients with breast cancer: a systematic review.
    Pereira PTVT; Reis AD; Diniz RR; Lima FA; Leite RD; da Silva MCP; Guerra RNM; de Moraes Vieira ÉB; Garcia JBS · Breast cancer research and treatment · 2019
    Systematic review932 participants8 studies pooledEnergy forGuarana
  7. Purified dry extract of Paullinia cupana (guaraná) (PC-18) for chemotherapy-related fatigue in patients with solid tumors: an early discontinuation study.
    del Giglio AB; Cubero Dde I; Lerner TG; Guariento RT; de Azevedo RG; Paiva H; Goldman C; Carelli B; Cruz FM; Schindler F; Pianowski L; de Matos LL; del Giglio A · Journal of dietary supplements · 2014
    Randomized trial40 participantsEnergy forGuarana
  8. Placebo-Controlled, Double-Blind, Randomized Study of a Dry Guarana Extract in Patients with Head and Neck Tumors Undergoing Chemoradiotherapy: Effects on Fatigue and Quality of Life.
    Martins SPDS; Ferreira CL; Del Giglio A · Journal of dietary supplements · 2019
    Randomized trial60 participantsEnergy forGuarana
  9. Effects of Acute Guarana (Paullinia cupana) Ingestion on Mental Performance and Vagal Modulation Compared to a Low Dose of Caffeine.
    Talik TN; Penna EM; Hack BP; Harp A; Millard-Stafford M · Nutrients · 2024
    Randomized trial20 participantsEnergy forGuarana
  10. Effectiveness of guaraná (Paullinia cupana) for postradiation fatigue and depression: results of a pilot double-blind randomized study.
    da Costa Miranda V; Trufelli DC; Santos J; Campos MP; Nobuo M; da Costa Miranda M; Schlinder F; Riechelmann R; del Giglio A · Journal of alternative and complementary medicine (New York, N.Y.) · 2009
    Randomized trial36 participantsEnergy forGuarana