Guarana 1000 mg

Guarana 1000 mg

Nutricost4.7 (270 ratings)
Format:Capsule Quantity: 150 Capsule(s) · 75 servings
Goals
$14.95 $0.19 per serving

About this product

A very large one-gram serving in two capsules of guarana supplies the central active in a focused two-capsule format. Plain guarana provides a strong stated quantity but no caffeine standardization supports short-term energy, while any cognitive benefit is likely limited to temporary alertness.

The formula is more convincing for energy than for broad cognitive support. Without caffeine standardization, users cannot compare its stimulant effect with a measured caffeine product.

The active amount is clearly stated and excellent serving economy supports practical use. Missing caffeine yield, extract-marker detail, and fuller use guidance remain the decisive limitations.

Who is it for
  • Adults seeking short-term stimulant support
  • Caffeine-tolerant users who can start cautiously
  • People who prefer a two-capsule guarana product
Best for
  • Short-term energy
  • Temporary alertness
  • Users comfortable with unstandardized caffeine

Pros

  • Clearly states the guarana amount
  • Offers excellent serving economy
  • Simple two-capsule delivery

Cons

  • Does not disclose caffeine milligrams
  • Stimulant strength may vary
  • Limited support beyond temporary alertness

Warnings

  • The caffeine amount is undisclosed, so begin cautiously rather than treating extract weight as caffeine weight.
  • Combining this with coffee, energy drinks, pre-workouts, or stimulant medicines may cause jitteriness, palpitations, anxiety, or insomnia.
  • Caffeine-sensitive users, pregnant people, and those with rhythm or uncontrolled blood-pressure concerns should avoid an unquantified stimulant load.

Product analysis

77 out of 100
A focused guarana two-capsule with a substantial stated amount and excellent serving economy. Unquantified caffeine makes the actual stimulant dose unpredictable.

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

Nutrient quality77

A large guarana amount is meaningful, but the plain form and unknown caffeine yield make potency variable. The focused guarana formula fits short-term energy and alertness use.

Ingredient transparency73

Listed weights are mostly clear, with no proprietary blend hiding a combined amount. Complete use directions and inactive ingredients are not supplied, while guarana is understandable, but seed, extract, and caffeine-standardization details are incomplete.

Customer satisfaction69

The average rating is strong, and the review count is moderate. No review text is supplied to assess recurring complaints or purpose-specific experience.

Value for money91

The formula quality and active contribution reasonably justify the cost. Serving value is good for the disclosed amount.

Format
Capsule
Container
150 Capsule(s)
Per serving
$0.19
Customer rating
4.7 · 270 ratings
Report analysis

Goals

Energy
Impact
Highest effect
A+ Ingredient FitC PathwaysA+ 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
Guarana 1000 mg lists 1,000 mg of guarana and a separate 220 mg caffeine-yield figure. Its nested source information identifies guarana, but no marker percentage or preparation ratio is shown; the two quantities remain distinct in the supplied details.
How this ingredient is rated

Composition and Label Disclosure40

The nested details identify guarana as the sole source, but give no marker percentage or preparation ratio.
Marker and Preparation Disclosure
The source is declared as guarana; the details list no marker percentage or preparation ratio.

Composition and Label Disclosure100

The supplied information separately reports 220 mg of caffeine yield, without reconciling it to the declared guarana amount.
Amount and Label Disclosure
A 220 mg caffeine yield is listed separately from the guarana amount.

Commercial Price and Usability

There is no ingredient-specific price or usability conclusion in the supplied information.
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Report alternatives

Sources

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

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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 participantsCognitive Support Energy forGuarana
  6. 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
  7. 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
  8. The effects of long-term administration of guarana on the cognition of normal, elderly volunteers.
    Galduróz JC; Carlini EA · Sao Paulo medical journal = Revista paulista de medicina · 1997
    Randomized trial45 participantsCognitive Support forGuarana
  9. 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
  10. 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
  11. 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