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High Caffeine 200 mg

Natrol
4.7
★ ★ ★ ★ ★
(586 ratings)
Caffeine 200 mg
Product Image
Score82
A cheap, direct caffeine tablet with predictable stimulation, but the strong fixed dose leaves little room for individual adjustment.
How scoring works
Quantity:100 Tablet(s) • (100 servings)
Goals:
Mental Focus
Energy
Productivity Boost
Metabolism Boost
Fitness
Weight Loss

Score 82

A cheap, direct caffeine tablet with predictable stimulation, but the strong fixed dose leaves little room for individual adjustment.
How scoring works
$7.99($0.07 per serving)
iHerb
$ 7.99
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Analysis

The single active stimulant can support alertness, focus, and perceived energy without a crowded formula. A full tablet supplies a strong amount that will suit regular caffeine users better than beginners.

Exact caffeine disclosure is a major strength, while the added calcium has little practical effect on the main purpose. Because the tablet is fixed-dose, users cannot easily tailor the serving unless it can be split accurately.

Budget-focused adults who already tolerate caffeine may find it useful for work or training. It is a poor fit for late-day use, caffeine-sensitive people, or anyone who already consumes several caffeinated drinks.

Who is it for
  • Adults with established caffeine tolerance
  • People seeking inexpensive stimulation for work or exercise
Best for
  • Short-term alertness and focus
  • Low-cost pre-workout stimulation

Pros

  • Exact caffeine amount is disclosed
  • Single-tablet serving
  • Very low serving cost
  • Simple formula

Cons

  • Strong dose for caffeine-sensitive users
  • Limited dosing flexibility
  • No ingredients for hydration or sustained focus
  • Does not directly support muscle gain

Warnings

  • Caffeine may cause jitteriness, anxiety, or a rapid heartbeat
  • Avoid late-day use because sleep may be disrupted
  • Combine carefully with coffee, energy drinks, or other stimulants
  • Pregnant people should keep total daily caffeine within clinician-guided limits

Nutrient quality

81 Highest impact

The clearly stated caffeine amount is effective for acute stimulation. Missing source detail limits form assessment, while immediate delivery may feel strong for sensitive users.

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Ingredient transparency

81 Highest impact

The active dose is clear and unblended. Source form, complete directions and inactive ingredients remain unavailable.

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Customer satisfaction

70 High impact

The supplied average is strong and supported by substantial volume. No review themes were provided, so consistency and purpose-specific experience cannot be assessed.

.

Value for money

94 Highest impact

A meaningful caffeine amount at a very low serving cost supports excellent value. The simple formula trades breadth and smoother delivery for direct economic efficiency.

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Report analysis

Goals

Mental Focus
Mental Focus
Impact
Highest effect
A+ Goal FitA+ Strength of SupportC- CoverageA Formula Quality
Caffeine · 200 mg

Caffeine provides a reliable, rapid increase in alertness, vigilance, and attention. The 200 mg amount is potent and clearly disclosed, but the formula offers no theanine or stress-support ingredient to smooth stimulation.

The focused tablet gives excellent depth for one alertness pathway without supporting neurotransmitter precursors or resilience under stress. The full amount may cause anxiety, tremor, rapid heartbeat, or sleep disruption, especially in caffeine-sensitive users or when combined with other stimulants.

Study evidence
Caffeine Supportive 128 studies
Energy
Energy
Impact
Highest effect
A+ Goal FitA- Strength of SupportC- CoverageA Formula Quality
Caffeine · 200 mg

Caffeine provides reliable acute alertness and reduces perceived effort. The 200 mg tablet is clearly dosed and sits in an effective stimulant range.

No L-theanine or extended-release feature is included to moderate the stimulant experience. Caffeine-sensitive users may experience jitters or sleep disruption, especially when the tablet is taken later in the day.

Study evidence
Caffeine Supportive 68 studies
Productivity Boost
Productivity Boost
Impact
Highest effect
A+ Goal FitB+ Strength of SupportC- CoverageA Formula Quality
Caffeine · 200 mg

Caffeine directly supports acute alertness, attention, and reduced perceived fatigue. Human evidence for these short-term productivity effects is strong.

The 200 mg amount is clearly disclosed and sits within an effective range, though the chemical form and source are not specified. Caffeine-sensitive users may experience jitteriness or sleep disruption, especially when combining the tablet with other caffeine.

Study evidence
Caffeine Supportive 108 studies
Metabolism Boost
Metabolism Boost
Impact
Highest effect
A+ Goal FitB+ Strength of SupportC CoverageA- Formula Quality
Caffeine · 200 mg

Caffeine directly increases short-term thermogenesis and fat mobilization. Human evidence strongly supports acute increases in energy expenditure, although tolerance can reduce the effect over time.

The 200 mg amount is effective but may cause jitters, a faster heart rate, or sleep disruption in caffeine-sensitive users. The caffeine amount is transparent, but source, purity standard, and release profile are not stated.

Study evidence
Caffeine Disputed 40 studies
Fitness
Fitness
Impact
Highest effect
A Goal FitB+ Strength of SupportD+ CoverageA+ Formula Quality
Caffeine · 200 mg

Caffeine at a clearly disclosed amount can improve alertness, reduce perceived effort, and support endurance or power during exercise. Its ergogenic evidence is stronger and more direct than that of general wellness ingredients.

The single-stimulant design is focused, though the caffeine source and purity standard are not identified. A 200 mg dose may cause jitters or disrupt sleep, especially in caffeine-sensitive users or when taken late in the day.

Study evidence
Caffeine Supportive 255 studies
Weight Loss
Weight Loss
Impact
High effect
B Goal FitB+ Strength of SupportC- CoverageB+ Formula Quality
Caffeine · 200 mg

Caffeine can modestly increase energy expenditure and help workout performance, which may support a calorie deficit. The clearly stated amount is effective for acute stimulation.

The single-pathway effect is temporary and does not directly improve appetite control or nutrient quality. The caffeine amount may cause jitteriness, rapid heartbeat, anxiety, or sleep disruption, especially in sensitive users.

Study evidence
Caffeine Disputed 14 studies
Muscle Gain
Muscle Gain
Impact
Moderate effect
D- Goal FitA- Strength of SupportF CoverageB Formula Quality
Caffeine · 200 mg

Caffeine can improve alertness and acute training performance, but it does not directly stimulate muscle protein synthesis. The 200 mg amount is practical for workout energy while remaining only indirect support for muscle gain.

A single clearly disclosed active makes dosing easy to assess. Taking caffeine late or combining it with other stimulants can impair sleep, raise heart rate, and reduce recovery quality.

Study evidence
Caffeine Supportive 31 studies

Ingredients

IngredientAmount per serving
Calcium (Dicalcium Phosphate Dihydrate)
 75 mg
Caffeine
200 mg
Adults 18–50 Dairy Free Vegetarian
Report overview
Caffeine · 200 mg OverallScore69
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The 200 mg caffeine dose sits in an effective range for alertness and is clearly stated. Its source is only named as caffeine, so purity and form cannot be verified, and the tablet offers no modified-release feature. Very low serving cost makes it economical, while caffeine-sensitive users may experience jitters or sleep disruption at this dose.

View ingredientView products
Loading alternative details
84 Performance

Smart Caffeine with L-Theanine

NS Natural Stacks
<p>Smart Caffeine with L-Theanine provides a more purposeful alternative because it combines 100 mg green-coffee caffeine with 200 mg L-theanine. Added L-theanine shifts the formula toward combined energy and focus compared with High Caffeine 200 mg, while using a lower caffeine amount than many direct tablets or pre-workouts.</p>
83 Performance

TheanineUP Focused Energy

California Gold Nutrition
<p>TheanineUP Focused Energy provides a more purposeful alternative because it pairs 100 mg caffeine with L-theanine, cocoa, and matcha. Added L-theanine shifts the formula toward combined energy and focus compared with High Caffeine 200 mg, while using a lower caffeine amount than many direct tablets or pre-workouts.</p>
82 Performance

Elite

Eu Natural
<p>Elite provides a more purposeful alternative because it pairs 100 mg caffeine with 200 mg L-theanine. Added L-theanine shifts the formula toward combined energy and focus compared with High Caffeine 200 mg, while using a lower caffeine amount than many direct tablets or pre-workouts.</p>
87 Budget

Caffeine 200 mg

ALLMAX
<p>Caffeine 200 mg costs less per serving, and it supplies 200 mg caffeine anhydrous in a single-active formula. Both are straightforward caffeine products, although the caffeine source and supporting calcium differ from High Caffeine 200 mg.</p>
82 Budget

Caffeine 200 mg

Best Naturals
<p>Caffeine 200 mg is not cheaper than High Caffeine 200 mg, but it is among the lowest-cost supplied candidates and it supplies 200 mg caffeine anhydrous with a small amount of calcium. Both are straightforward caffeine products, although the caffeine source and supporting calcium differ from High Caffeine 200 mg.</p>
81 Budget

Natural Caffeine

BodyTech
<p>Natural Caffeine is not cheaper than High Caffeine 200 mg, but it is among the lowest-cost supplied candidates and it provides 200 mg caffeine sourced from coffee. Both are straightforward caffeine products, although the caffeine source and supporting calcium differ from High Caffeine 200 mg.</p>
84 Value

L-Theanine & Caffeine

SR Sports Research
<p>L-Theanine & Caffeine costs more per serving, but it combines 100 mg green-coffee caffeine with 200 mg L-theanine and medium-chain triglycerides; the supplied value evidence is more favorable. Added L-theanine shifts the formula toward combined energy and focus compared with High Caffeine 200 mg, while using a lower caffeine amount than many direct tablets or pre-workouts.</p>
74 Value

Hydroxycut Hardcore Elite

MuscleTech Performance Series
<p>Hydroxycut Hardcore Elite costs more per serving, but it combines 270 mg caffeine with green coffee, L-theanine, cocoa, coleus, and yohimbe; the supplied value evidence is still reasonably competitive. The broader stimulant blend is more complex than High Caffeine 200 mg, so tolerance and ingredient fit deserve extra attention.</p>
70 Value

Energy + Focus

ZHOU
<p>Energy + Focus costs more per serving, but it pairs natural caffeine with 200 mg L-theanine; the supplied value evidence is still reasonably competitive. Added L-theanine shifts the formula toward combined energy and focus compared with High Caffeine 200 mg, while using a lower caffeine amount than many direct tablets or pre-workouts.</p>
Report alternatives

Sources

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

  1. Using coffee to compensate for poor sleep: Impact on vigilance and implications for workplace performance.
    Anderson JR; Hagerdorn PL; Gunstad J; Spitznagel MB · Applied ergonomics · 2018
    Randomized trial69 participantsMental Focus forCaffeine
  2. Caffeine administration at night during extended wakefulness effectively mitigates performance impairment but not subjective assessments of fatigue and sleepiness.
    Paech GM; Banks S; Pajcin M; Grant C; Johnson K; Kamimori GH; Vedova CB · Pharmacology, biochemistry, and behavior · 2017
    Randomized trial24 participantsEnergy forCaffeine
  3. No effects of caffeine on cycling to exhaustion and perceptual responses in non-caffeine-restricted subjects.
    Weippert M; Behrens M; Schlegel M; Schröder T; Tillmann M; Rühe N; Römer R; Mau-Möller A; Bruhn S · Journal of the International Society of Sports Nutrition · 2025
    Randomized trial56 participantsEnergy forCaffeine
  4. Physiological and cognitive responses to caffeine during repeated, high-intensity exercise.
    Crowe MJ; Leicht AS; Spinks WL · International journal of sport nutrition and exercise metabolism · 2007
    Randomized trial17 participantsMental Focus forCaffeine
  5. A critical review of caffeine withdrawal: empirical validation of symptoms and signs, incidence, severity, and associated features.
    Juliano LM; Griffiths RR · Psychopharmacology · 2005
    Systematic review66 studies pooledEnergy forCaffeine
  6. Caffeinated Coffee and Tea Consumption, Genetic Variation and Cognitive Function in the UK Biobank.
    Cornelis MC; Weintraub S; Morris MC · The Journal of nutrition · 2020
    Cross-sectional study445,786 participantsMental Focus forCaffeine
  7. Acute effects of caffeine on attention: a comparison of non-consumers and withdrawn consumers.
    Smith AP; Christopher G; Sutherland D · Journal of psychopharmacology (Oxford, England) · 2013
    Randomized trial70 participantsMental Focus forCaffeine
  8. Differential cognitive effects of energy drink ingredients: caffeine, taurine, and glucose.
    Giles GE; Mahoney CR; Brunyé TT; Gardony AL; Taylor HA; Kanarek RB · Pharmacology, biochemistry, and behavior · 2013
    Randomized trial48 participantsEnergy forCaffeine
  9. Effects of modafinil and caffeine on night-time vigilance of air force crewmembers: A randomized controlled trial.
    Wingelaar-Jagt YQ; Bottenheft C; Riedel WJ; Ramaekers JG · Journal of psychopharmacology (Oxford, England) · 2023
    Randomized trial32 participantsMental Focus forCaffeine
  10. 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.
    Ozan M; Buzdagli Y; Eyipinar CD; Baygutalp NK; Yüce N; Oget F; Kan E; Baygutalp F · Nutrients · 2022
    Randomized trial20 participantsEnergy forCaffeine
  11. The effects of L-theanine, caffeine and their combination on cognition and mood.
    Haskell CF; Kennedy DO; Milne AL; Wesnes KA; Scholey AB · Biological psychology · 2008
    Randomized trialMental Focus forCaffeine
  12. Trait Energy and Fatigue Modify the Effects of Caffeine on Mood, Cognitive and Fine-Motor Task Performance: A Post-Hoc Study.
    Fuller DT; Smith ML; Boolani A · Nutrients · 2021
    Randomized trialEnergy forCaffeine
  13. Caffeine and attentional control: improved and impaired performance in healthy older adults and Parkinson's disease according to task demands.
    Sharma K; Fallon SJ; Davis T; Ankrett S; Munro G; Christopher G; Coulthard E · Psychopharmacology · 2022
    Randomized trial68 participantsMental Focus forCaffeine
  14. Effect of Caffeine on Golf Performance and Fatigue during a Competitive Tournament.
    Mumford PW; Tribby AC; Poole CN; Dalbo VJ; Scanlan AT; Moon JR; Roberts MD; Young KC · Medicine and science in sports and exercise · 2016
    Randomized trial12 participantsEnergy forCaffeine
  15. The combined effects of L-theanine and caffeine on cognitive performance and mood.
    Owen GN; Parnell H; De Bruin EA; Rycroft JA · Nutritional neuroscience · 2009
    Randomized trial27 participantsMental Focus forCaffeine
  16. Effects of Caffeine Intake on Cognitive Performance Related to Total Sleep Deprivation and Time on Task: A Randomized Cross-Over Double-Blind Study.
    Quiquempoix M; Sauvet F; Erblang M; Van Beers P; Guillard M; Drogou C; Trignol A; Vergez A; Léger D; Chennaoui M; Gomez-Merino D; Rabat A · Nature and science of sleep · 2022
    Randomized trial24 participantsEnergy forCaffeine
  17. The effect of mouth rinsing with different concentrations of caffeine solutions on reaction time.
    Virdinli SG; Kutlay E; Yuzbasioglu Y; Vollaard NBJ; Rudarli Nalcakan G · Journal of sports sciences · 2022
    Randomized trial45 participantsMental Focus forCaffeine
  18. Caffeine Supplementation and Physical Performance, Muscle Damage and Perception of Fatigue in Soccer Players: A Systematic Review.
    Mielgo-Ayuso J; Calleja-Gonzalez J; Del Coso J; Urdampilleta A; León-Guereño P; Fernández-Lázaro D · Nutrients · 2019
    Systematic review17 participants17 studies pooledEnergy forCaffeine
  19. Caffeine attenuates scopolamine-induced memory impairment in humans.
    Riedel W; Hogervorst E; Leboux R; Verhey F; van Praag H; Jolles J · Psychopharmacology · 1996
    Randomized trial16 participantsMental Focus forCaffeine
  20. Effect of caffeine intake on fat oxidation rate during exercise: is there a dose-response effect?
    Gutiérrez-Hellín J; Aguilar-Navarro M; Ruiz-Moreno C; Muñoz A; Varillas-Delgado D; Amaro-Gahete FJ; Del Coso J · European journal of nutrition · 2023
    Randomized trial18 participantsEnergy Metabolism Boost forCaffeine
  21. Cognitive and mood improvements of caffeine in habitual consumers and habitual non-consumers of caffeine.
    Haskell CF; Kennedy DO; Wesnes KA; Scholey AB · Psychopharmacology · 2005
    Randomized trial48 participantsEnergy forCaffeine
  22. Caffeine-containing energy drink improves physical performance of elite rugby players during a simulated match.
    Del Coso J; Ramírez JA; Muñoz G; Portillo J; Gonzalez-Millán C; Muñoz V; Barbero-Álvarez JC; Muñoz-Guerra J · Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme · 2016
    Randomized trial26 participantsEnergy forCaffeine
  23. Effect of caffeine ingestion on cycling performance: a systematic review and meta-analysis.
    Wu J; Xu K; Yin M; Ding X; Wang T; Zhang Q; Wu X; Xiao N · Frontiers in nutrition · 2026
    Meta-analysis226 participants20 studies pooledFitness forCaffeine
  24. Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis.
    Wang Z; Qiu B; Gao J; Del Coso J · Nutrients · 2023
    Meta-analysis254 participants21 studies pooledFitness forCaffeine
  25. Acute Effects of Caffeine Supplementation on Movement Velocity in Resistance Exercise: A Systematic Review and Meta-analysis.
    Raya-González J; Rendo-Urteaga T; Domínguez R; Castillo D; Rodríguez-Fernández A; Grgic J · Sports medicine (Auckland, N.Z.) · 2021
    Meta-analysis12 studies pooledFitness forCaffeine
  26. 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.
    Montalvo-Alonso JJ; Ferragut C; Del Val-Manzano M; Valadés D; Roberts J; Pérez-López A · Nutrients · 2024
    Randomized trial76 participantsFitness forCaffeine
  27. 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.
    Carvalho A; Marticorena FM; Grecco BH; Barreto G; Saunders B · Sports medicine (Auckland, N.Z.) · 2022
    Meta-analysis60 studies pooledFitness forCaffeine
  28. Performance and alertness effects of caffeine, dextroamphetamine, and modafinil during sleep deprivation.
    Wesensten NJ; Killgore WD; Balkin TJ · Journal of sleep research · 2006
    Randomized trial48 participantsMental Focus forCaffeine
  29. Effects of caffeine on mood and performance: a study of realistic consumption.
    Brice CF; Smith AP · Psychopharmacology · 2003
    Clinical trial24 participantsMental Focus forCaffeine
  30. Effects of caffeine or diphenhydramine on visual vigilance.
    Fine BJ; Kobrick JL; Lieberman HR; Marlowe B; Riley RH; Tharion WJ · Psychopharmacology · 1995
    Randomized trial24 participantsMental Focus forCaffeine
  31. A Randomized Study to Examine the Ability of a Caffeine-Based Energy Drink to Impact Energy Expenditure, Fat Oxidation, and Cognitive Performance.
    Krieger J; Schrautemeier A; Hagele A; Gaige C; Mennemeyer O; Tolbert S; Iannotti J; Kerksick C; Noonan C; Mumford P · Nutrients · 2025
    Randomized trial60 participantsMetabolism Boost forCaffeine
  32. Oolong tea increases metabolic rate and fat oxidation in men.
    Rumpler W; Seale J; Clevidence B; Judd J; Wiley E; Yamamoto S; Komatsu T; Sawaki T; Ishikura Y; Hosoda K · The Journal of nutrition · 2001
    Randomized trial12 participantsMetabolism Boost forCaffeine
  33. Comparison of changes in energy expenditure and body temperatures after caffeine consumption.
    Koot P; Deurenberg P · Annals of nutrition & metabolism · 1995
    Randomized trial12 participantsMetabolism Boost forCaffeine
  34. Caffeine Increases Work Done above Critical Power, but Not Anaerobic Work.
    Silveira R; Andrade-Souza VA; Arcoverde L; Tomazini F; Sansonio A; Bishop DJ; Bertuzzi R; Lima-Silva AE · Medicine and science in sports and exercise · 2018
    Randomized trial9 participantsMetabolism Boost forCaffeine
  35. Effects of Acute Ingestion of Caffeine Capsules on Muscle Strength and Muscle Endurance: A Systematic Review and Meta-Analysis.
    Wu W; Chen Z; Zhou H; Wang L; Li X; Lv Y; Sun T; Yu L · Nutrients · 2024
    Meta-analysis14 studies pooledMuscle Gain forCaffeine
  36. Acute caffeine intake improves muscular strength, power, and endurance performance, reversing the time-of-day effect regardless of muscle activation level in resistance-trained males: a randomized controlled trial.
    Montalvo-Alonso JJ; Del Val-Manzano M; Cerezo-Telléz E; Ferragut C; Valadés D; Rodríguez-Falces J; Pérez-López A · European journal of applied physiology · 2025
    Randomized trial13 participantsMuscle Gain forCaffeine
  37. Wake up and smell the coffee: caffeine supplementation and exercise performance-an umbrella review of 21 published meta-analyses.
    Grgic J; Grgic I; Pickering C; Schoenfeld BJ; Bishop DJ; Pedisic Z · British journal of sports medicine · 2020
    Systematic review21 studies pooledMuscle Gain forCaffeine
  38. Effects of caffeine intake on muscle strength and power: a systematic review and meta-analysis.
    Grgic J; Trexler ET; Lazinica B; Pedisic Z · Journal of the International Society of Sports Nutrition · 2018
    Meta-analysis20 studies pooledMuscle Gain forCaffeine
  39. Caffeine increases strength and power performance in resistance-trained females during early follicular phase.
    Norum M; Risvang LC; Bjørnsen T; Dimitriou L; Rønning PO; Bjørgen M; Raastad T · Scandinavian journal of medicine & science in sports · 2021
    Randomized trial15 participantsMuscle Gain forCaffeine
  40. Effects of caffeine on alertness.
    Zwyghuizen-Doorenbos A; Roehrs TA; Lipschutz L; Timms V; Roth T · Psychopharmacology · 1990
    Randomized trial24 participantsProductivity Boost forCaffeine
  41. Effects of Different Sources of Low-Dose Caffeine on Mood/Arousal and Cognitive Performance.
    Irwin C; McCartney D; Grant G; Delang N; Bartrim K; Cox GR; Desbrow B · Perceptual and motor skills · 2023
    Randomized trial22 participantsProductivity Boost forCaffeine
  42. Effects of caffeine, sleep loss, and stress on cognitive performance and mood during U.S. Navy SEAL training. Sea-Air-Land.
    Lieberman HR; Tharion WJ; Shukitt-Hale B; Speckman KL; Tulley R · Psychopharmacology · 2003
    Randomized trial68 participantsProductivity Boost forCaffeine
  43. A review of caffeine's effects on cognitive, physical and occupational performance.
    McLellan TM; Caldwell JA; Lieberman HR · Neuroscience and biobehavioral reviews · 2017
    Narrative reviewProductivity Boost forCaffeine
  44. Acute caffeine supplementation as a nutrition-based strategy to mitigate sleep-loss-related cognitive and operational performance impairments in military personnel: a systematic review and meta-analysis.
    Wang R; Wang W; Meng L; Hao G; Gu G · Frontiers in nutrition · 2026
    Meta-analysis7 studies pooledProductivity Boost forCaffeine
  45. Changes in caffeine intake and long-term weight change in men and women.
    Lopez-Garcia E; van Dam RM; Rajpathak S; Willett WC; Manson JE; Hu FB · The American journal of clinical nutrition · 2006
    Cohort study58,157 participantsWeight Loss forCaffeine
  46. Does caffeine ingestion before a short-term sprint interval training promote body fat loss?
    Ferreira GA; Felippe LC; Bertuzzi R; Bishop DJ; Ramos IS; De-Oliveira FR; Lima-Silva AE · Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas · 2020
    Randomized trial20 participantsWeight Loss forCaffeine
  47. Eight Weeks of Sprint Interval Training With Adding Caffeine Ingestion Leads to Greater Improvements in Health-Related Physiological Parameters in Obese Male Adults.
    Zhiang J; Song Q · Physiological research · 2026
    Randomized trial30 participantsWeight Loss forCaffeine
  48. Caffeine treatment prevented from weight regain after calorie shifting diet induced weight loss.
    Davoodi SH; Hajimiresmaiel SJ; Ajami M; Mohseni-Bandpei A; Ayatollahi SA; Dowlatshahi K; Javedan G; Pazoki-Toroudi H · Iranian journal of pharmaceutical research : IJPR · 2014
    Non-randomized trial60 participantsWeight Loss forCaffeine
  49. The effects of caffeine intake on weight loss: a systematic review and dos-response meta-analysis of randomized controlled trials.
    Tabrizi R; Saneei P; Lankarani KB; Akbari M; Kolahdooz F; Esmaillzadeh A; Nadi-Ravandi S; Mazoochi M; Asemi Z · Critical reviews in food science and nutrition · 2020
    Meta-analysis606 participants13 studies pooledWeight Loss forCaffeine