$8.99 $0.07 per serving
Product analysis
Caffeine 200 mg can help you feel more awake and focused and may support exercise performance. Its effects vary with habitual caffeine use, timing and sleep loss.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality24
Calcium is identified as dicalcium phosphate, while the caffeine preparation is unspecified. Their relative form quality cannot be established confidently.
Ingredient Transparency81
Both active amounts are disclosed, helping you compare servings. The calcium form is identified, but the caffeine preparation is not.
Value For Money88
The caffeine comes at a low cost per serving. Calcium cannot be judged separately for value.
Customer Satisfaction66
The small set of customer reviews is positive. More feedback would give a broader picture of satisfaction, and the existing opinions do not establish health effects.
Product Focus72
Caffeine gives the formula a clear role in short-term alertness, attention and exercise. Its wider uses mostly reflect that same stimulant effect rather than distinct benefits from a complex formula.
- Format
Tablet - Container
- 120 Tablet(s)
- Per serving
- $0.07
- Customer rating
- 4.5 · 25 ratings
Goals
Impact
Highest effect
Caffeine · 200 mg
Caffeine can increase alertness and reduce sleepiness. The declared 200 mg per serving supports an acute waking effect, rather than cellular fuel or treatment of persistent fatigue. Response depends on factors such as tolerance, timing and sleep loss; a larger amount does not automatically mean a larger benefit.
How this product is rated for Energy
Ingredient fit78
Caffeine accounts for the main relevant ingredients. The relevant declared amounts fully meet the saved amount references; this does not establish a larger practical benefit.
Goal fit
Caffeine provides the main connection to energy here. Other actives broaden the product beyond this goal.
Dose adequacy
The relevant declared amounts fully meet the saved amount references; this does not establish a larger practical benefit.
Pathways60
The main saved connection is central alertness.
Depth
The main saved connection is central alertness.
Breadth
Only central alertness reaches the saved breadth threshold; the other tracked aspects do not.
Evidence100
Caffeine leads the saved evidence finding, for acute alertness and reduced sleepiness.
Evidence strength
Caffeine leads the saved evidence finding, for acute alertness and reduced sleepiness.
Studied preparation
The qualifying ingredient entries meet the saved preparation check; this alone does not establish broader fatigue benefits.
Formulation logic100
The relevant ingredients have no unmet partner requirement in the saved findings; this does not establish an added combination benefit.
Partner coverage
The relevant ingredients have no unmet partner requirement in the saved findings; this does not establish an added combination benefit.
Conflicts
No configured ingredient conflict was matched in the supplied facts.
Effective doses
All counted ingredients meet the saved minimum amount check; that threshold is not proof of clinical benefit.
Impact
High effect
Caffeine · 200 mg
Caffeine can briefly raise resting metabolic rate by a modest amount. This is an acute effect, so it does not establish sustained fat loss or a lasting increase in daily energy expenditure. The 200 mg per serving receives full amount recognition, but the configured plateau does not mean that doubling a studied amount doubles the metabolic effect.
How this product is rated for Metabolism Support
Ingredient fit78
Caffeine is the sole credited ingredient and receives full amount recognition.
Goal fit
Links to many other goals reduce the formula’s focus on increased energy expenditure.
Dose adequacy
The recognized ingredient amounts receive full consideration; this does not establish extra benefit above studied exposures.
Pathways51
Caffeine supplies the adrenergic-drive finding.
Depth
Caffeine supplies the adrenergic-drive finding.
Breadth
One pathway reaches the coverage threshold, leaving the findings concentrated in a single area.
Evidence66
The caffeine evidence directly concerns a modest, transient increase in resting metabolic rate.
Evidence strength
The caffeine evidence directly concerns a modest, transient increase in resting metabolic rate.
Studied preparation
The saved findings recognize the evaluated preparation, within the ingredient-specific limits of the supplied human evidence.
Formulation logic100
The recognized ingredients have their required partners or work independently, and no matched formulation conflict appears.
Partner coverage
Recognized ingredients have any required partner or work independently; no additional combination benefit is established.
Conflicts
No matched formulation conflict appears in the supplied findings.
Effective doses
All included ingredients meet this amount threshold; it is not a proven minimum effective dose or evidence of extra metabolic benefit.
Impact
High effect
Caffeine · 200 mg
Caffeine can acutely support exercise performance by reducing perceived fatigue, with the most consistent evidence for endurance. Strength and sprint responses vary. Its declared serving amount contributes to the saved findings, but fixed serving comparisons do not establish a personal dose without body mass.
How this product is rated for Fitness
Ingredient fit78
Caffeine contributes a relevant declared amount. Formula focus and serving amounts shape the ingredient finding.
Goal fit
Relevant exercise ingredients sit within a broader formula containing ingredients aimed at other goals.
Dose adequacy
The declared serving reaches the saved amount comparison; this does not establish an optimal personal dose or benefit from higher amounts.
Pathways60
The strongest assigned area is central drive and fatigue perception. Coverage reflects ingredient roles rather than a measured performance improvement.
Depth
The strongest assigned area is central drive and fatigue perception; this does not establish the size of a performance improvement.
Breadth
Coverage centers on central drive and fatigue perception. Other exercise areas have less support in the saved findings.
Evidence77
Caffeine leads the evidence finding. The preparation, population and regimen in the supplied context limit how that finding transfers to routine exercise.
Evidence strength
Caffeine provides the leading evidence contribution, subject to its specific nutritional-status, exercise, preparation and regimen limits.
Studied preparation
The included ingredients match the saved preparation comparisons; this does not establish that the whole formula reproduces a trial regimen.
Formulation logic100
The included ingredients meet the saved minimum amount comparisons, with no missing partner or configured conflict. These findings do not establish a combined benefit or overall safety.
Partner coverage
No missing required partner limits the included ingredients; this does not establish added benefit from combining them.
Conflicts
No configured ingredient conflict was identified; this does not establish overall safety or cover every possible interaction.
Effective doses
The included ingredients meet the saved minimum amount comparison, which is not proof of a clinically effective personal exercise dose.
Impact
High effect
Caffeine · 200 mg
Caffeine supports acute alertness, vigilance and sustained attention through adenosine blocking. The 200 mg serving reaches the supplied attention range, with no further benefit implied by larger amounts. The saved findings therefore concentrate on alertness. How noticeable that effect is can vary with habitual caffeine use, tolerance and sleep loss.
How this product is rated for Mental Focus
Ingredient fit78
Caffeine supplies the direct focus connection, alongside calcium in the broader formula. The declared caffeine amount reaches the saved range; larger amounts are not assigned extra attention benefit.
Goal fit
Caffeine supplies the direct focus connection, alongside calcium in the broader formula.
Dose adequacy
The declared caffeine amount reaches the saved range; larger amounts are not assigned extra attention benefit.
Pathways60
Caffeine-driven alertness is the main finding.
Depth
Caffeine-driven alertness is the main finding.
Breadth
Alertness is the only substantially covered route.
Evidence79
Caffeine supplies the acute attention evidence. The declared caffeine matches the studied category.
Evidence strength
Caffeine supplies the acute attention evidence.
Studied preparation
The declared caffeine matches the studied category.
Formulation logic100
Caffeine meets the saved amount threshold. No configured ingredient conflict was identified in the saved findings.
Partner coverage
The credited ingredients work alone or have their required partner in the saved findings.
Conflicts
No configured ingredient conflict was identified in the saved findings.
Effective doses
Caffeine meets the saved amount threshold.
Impact
Moderate effect
Caffeine · 200 mg
Caffeine can briefly increase heat production and energy use, though this is different from sustained weight loss. The serving supplies 200 mg of declared caffeine; larger amounts do not automatically mean more weight lost. Habitual caffeine use can reduce the practical effect.
How this product is rated for Weight Loss
Ingredient fit78
Caffeine supplies the main weight-related connection, while the wider formula varies in focus and independent support.
Goal fit
Caffeine supplies the main weight-related connection, while the wider formula varies in focus and independent support.
Dose adequacy
The included amount reaches the saved benchmark; additional mass does not imply greater sustained weight loss.
Pathways48
Heat production and energy use are the strongest connections in the saved findings. Only heat production and energy use reach substantial coverage.
Depth
Heat production and energy use are the strongest connections in the saved findings.
Breadth
Only heat production and energy use reach substantial coverage.
Evidence62
Caffeine leads the saved evidence comparison, supporting brief heat production rather than proven sustained weight loss.
Evidence strength
Caffeine leads the saved evidence comparison, supporting brief heat production rather than proven sustained weight loss.
Studied preparation
Included preparations are accepted in the saved findings; this does not remove the limits of their weight-loss evidence.
Formulation logic100
No required partner is missing. No assessed ingredient conflict was found.
Partner coverage
Included ingredients have no missing required partner.
Conflicts
No assessed ingredient conflict was found.
Effective doses
All included ingredients meet the saved minimum amount for inclusion, without establishing a universal effective weight-loss dose.
Impact
High effect
Caffeine · 200 mg
Caffeine supports short-term alertness and attention, although tolerance, timing and sleep loss can change the outcome. These attention findings do not establish sustained work output.
How this product is rated for Productivity Boost
Ingredient fit78
Caffeine gives the formula a clear connection to alertness, while its broader ingredient mix or linked uses affect overall focus.
Goal fit
The formula has a broader purpose, with other active ingredients or multiple linked uses reducing its concentration on this goal.
Dose adequacy
The declared amount reaches the saved comparison range; that does not establish an effective productivity dose.
Pathways60
The strongest connection is short-term alertness, with limited breadth across other cognitive routes.
Depth
Short-term alertness is the strongest represented route.
Breadth
Only one assessed route reaches meaningful coverage, so the findings do not show broad support across different aspects of productivity.
Evidence76
Caffeine provides the clearest relevant evidence for acute attention. Preparation limitations affect other ingredients where applicable.
Evidence strength
Caffeine supplies the strongest recognized evidence here, focused on acute attention rather than sustained work output.
Studied preparation
The saved finding recognizes the eligible declarations as matching its preparation criteria; this does not establish extra benefit from their forms.
Formulation logic100
No configured conflict or missing partner was found, and the counted ingredients meet the saved minimum amount threshold.
Partner coverage
No missing ingredient partner limits the saved finding; this does not demonstrate an added benefit from combining ingredients.
Conflicts
No configured ingredient conflict was identified in the supplied facts.
Effective doses
The counted ingredients reach the saved minimum amount threshold, which is a comparison criterion rather than proof of benefit.
Impact
High effect
Caffeine · 200 mg
Caffeine can improve acute strength, power or endurance, but this does not establish sustained muscle-mass gain.
How this product is rated for Muscle Gain
Ingredient fit68
The formula’s recognized ingredients mainly concern training performance; their amount findings do not establish added muscle growth.
Goal fit
Other actives and uses reduce the formula’s muscle-gain focus; recognition of training ingredients does not establish chronic hypertrophy.
Dose adequacy
The declared amounts only partly match the saved comparisons, with lower amounts or unresolved quantities limiting the finding.
Pathways50
The strongest saved connection concerns training work capacity and recovery. Performance or hydration changes alone do not establish muscle growth.
Depth
The strongest saved connection concerns training work capacity and recovery. Performance or hydration changes alone do not establish muscle growth.
Breadth
The saved findings concentrate on one main area, with little broader coverage of muscle-building needs.
Evidence83
The saved evidence finding includes performance ingredients whose supplied context does not establish sustained hypertrophy.
Evidence strength
Caffeine leads the saved evidence finding, but acute performance evidence cannot establish sustained hypertrophy.
Studied preparation
The saved finding accepts the preparation, without extending acute performance results to chronic muscle growth.
Formulation logic100
The ingredients meet the saved partner and amount checks, with no configured conflict identified.
Partner coverage
The recognized ingredients meet the saved partner checks; this does not establish an extra benefit from combining them.
Conflicts
No configured ingredient conflict was identified from the available facts.
Effective doses
The recognized ingredients reach the saved amount threshold, which is a comparison policy rather than proof of an effective hypertrophy dose.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Calcium (Dicalcium Phosphate) | 25 mg | |
Caffeine Anhydrous | 200 mg |
Caffeine · 200 mg OverallScore76
Each serving lists 200 mg of caffeine. The whole-product serving costs about $0.07.
How this ingredient is rated
Active Ingredient Quality & Bioavailability40
Caffeine is identified, but the available form data do not specify a distinct preparation or establish a release advantage.
Advanced Bioavailability and Release Profiles
Caffeine is identified, but the available form data do not specify a distinct preparation or establish a release advantage.
Dose, Safety & Label Transparency100
The label states 200 mg of caffeine per serving. The evaluated ingredient panel lists no secondary stimulants.
Caffeine Dose Transparency
The label states 200 mg of caffeine per serving.
Dosage Efficacy and Safety Margin
The label states 200 mg of caffeine per serving.
Secondary Stimulant Disclosure and Risk
The evaluated ingredient panel lists no secondary stimulants.
Value100
The whole-product serving costs about $0.07, on the lower end of the evaluated prices.
Price Per Serving vs. Collection Median
The whole-product serving costs about $0.07, on the lower end of the evaluated prices.
Alternative products
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Cognitive and mood improvements of caffeine in habitual consumers and habitual non-consumers of caffeine.
- Caffeine-containing energy drink improves physical performance of elite rugby players during a simulated match.
- Differential cognitive effects of energy drink ingredients: caffeine, taurine, and glucose.
- Does Single or Combined Caffeine and Taurine Supplementation Improve Athletic and Cognitive Performance without Affecting Fatigue Level in Elite Boxers? A Double-Blind, Placebo-Controlled Study.
- Trait Energy and Fatigue Modify the Effects of Caffeine on Mood, Cognitive and Fine-Motor Task Performance: A Post-Hoc Study.
- Effect of caffeine ingestion on cycling performance: a systematic review and meta-analysis.
- Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis.
- Acute Effects of Caffeine Supplementation on Movement Velocity in Resistance Exercise: A Systematic Review and Meta-analysis.
- Sex Differences in the Ergogenic Response of Acute Caffeine Intake on Muscular Strength, Power and Endurance Performance in Resistance-Trained Individuals: A Randomized Controlled Trial.
- Can I Have My Coffee and Drink It? A Systematic Review and Meta-analysis to Determine Whether Habitual Caffeine Consumption Affects the Ergogenic Effect of Caffeine.
- Effects of modafinil and caffeine on night-time vigilance of air force crewmembers: A randomized controlled trial.
- Acute effects of caffeine on attention: a comparison of non-consumers and withdrawn consumers.
- Performance and alertness effects of caffeine, dextroamphetamine, and modafinil during sleep deprivation.
- Effects of caffeine on mood and performance: a study of realistic consumption.
- Effects of caffeine or diphenhydramine on visual vigilance.
- A Randomized Study to Examine the Ability of a Caffeine-Based Energy Drink to Impact Energy Expenditure, Fat Oxidation, and Cognitive Performance.
- Oolong tea increases metabolic rate and fat oxidation in men.
- Effect of caffeine intake on fat oxidation rate during exercise: is there a dose-response effect?
- Comparison of changes in energy expenditure and body temperatures after caffeine consumption.
- Caffeine Increases Work Done above Critical Power, but Not Anaerobic Work.