Product Image

Essential AmiN.O. Energy + Electrolytes Pineapple Twist

ON Optimum Nutrition
4.5
★ ★ ★ ★ ★
(3913 ratings)
Sodium 110 mg
Chloride 200 mg
Caffeine 100 mg
Green Tea 50 mg
Product Image
Score62
Convenient moderate caffeine with light electrolyte and amino support. Proprietary blends and low sodium weaken its usefulness for demanding training.
How scoring works
Quantity:10 Ounce(s) • (30 servings)
Goals:
Energy
Weight Loss
Productivity Boost
Mental Focus

Score 62

Convenient moderate caffeine with light electrolyte and amino support. Proprietary blends and low sodium weaken its usefulness for demanding training.
How scoring works

Also available as

2 options
Watermelon Splash Green Tea 50 mg, Chloride 200 mg +2 more • 10 Ounce(s) • 30 servings $19.97 ($0.66 per serving) Tangerine Wave Green Tea 50 mg, Chloride 200 mg +2 more • 10 Ounce(s) • 30 servings $23.99 ($0.79 per serving)
$23.99($0.79 per serving)
Vitacost
$ 28.43
iHerb
$ 27.68
Amazon
$ 23.99
Report prices

Analysis

The 100 mg caffeine amount can provide a practical short-term lift in alertness and exercise drive. Magnesium, chloride, sodium, and a five-gram amino blend add a light hydration and workout-support layer.

The amino and electrolyte blends do not disclose their individual components or amounts, so their performance value cannot be judged well. Sodium is modest for long or sweaty training, and the small green tea and green coffee extracts do not state meaningful active yields.

Pineapple Twist fits moderate-caffeine users who want one drink for light workouts or a daytime energy boost. It is less suitable as a serious endurance electrolyte, a fully transparent amino product, or a smooth focus formula.

Who is it for
  • Moderate-caffeine users
  • People doing short or light workouts
  • Adults wanting a flavored pre-workout-style drink
Best for
  • Short-term energy
  • Light workout hydration
  • Exercise alertness

Pros

  • Clearly states 100 mg caffeine
  • Provides magnesium, sodium, and chloride
  • Includes a substantial total amino blend

Cons

  • Amino blend composition is hidden
  • Sodium is low for heavy sweat replacement
  • Green tea and coffee actives are not standardized

Warnings

  • The 100 mg caffeine may cause jitters, anxiety, or palpitations in sensitive users
  • Late-day use may disrupt sleep
  • Combining it with coffee or pre-workout products can raise total stimulant exposure

Nutrient quality

68 High impact

Caffeine is meaningfully dosed and the electrolyte-amino concept fits workout energy. Hidden blends, lightly dosed minerals, and token unstandardized botanicals limit nutritional depth.

Ingredient transparency

52 Moderate impact

Caffeine and basic mineral totals are clear, but two broad blends hide important component amounts. Missing source forms, non-active ingredients, and full preparation guidance further limit transparency.

Customer satisfaction

71 High impact

The supplied average is strong and supported by very large response volume. No comment-level evidence is available to assess repeated complaints or alignment with the intended use.

Value for money

57 Moderate impact

Caffeine and workout convenience provide some serving value. Hidden blend contents and modest electrolyte depth weaken the quality delivered for the cost.

Report analysis

Goals

Energy
Energy
Impact
High effect
A Goal FitB Strength of SupportB CoverageB- Formula Quality
Magnesium · 60 mgCaffeine · 100 mg

Caffeine provides a reliable acute lift in alertness and may reduce perceived effort during exercise. Electrolytes and amino acids broaden the formula toward workout hydration and performance.

The caffeine amount is clear, but the amino and electrolyte blends do not disclose each component's contribution. Caffeine may disrupt sleep or worsen jitteriness and anxiety in sensitive users, especially when taken late in the day or combined with other stimulants.

Study evidence
Caffeine Supportive 68 studies
Weight Loss
Weight Loss
Impact
High effect
B+ Goal FitC Strength of SupportC CoverageB- Formula Quality
Magnesium · 60 mgGreen Tea · 50 mgCaffeine · 100 mg

A clearly measured 100 mg caffeine dose can modestly increase thermogenesis and support exercise output. Amino acids and electrolytes may help training performance and hydration during a calorie deficit.

Green tea and green coffee amounts are small, and no EGCG or chlorogenic-acid yield is disclosed. The amino and electrolyte blends also hide individual amounts, limiting confidence in muscle-preservation support.

Study evidence
Caffeine Disputed 14 studies
Green Tea Supportive 42 studies
Productivity Boost
Productivity Boost
Impact
High effect
B+ Goal FitC+ Strength of SupportC CoverageC Formula Quality
Magnesium · 60 mgCaffeine · 100 mg

The 100 mg caffeine amount can provide a clear short-term lift in alertness and perceived energy. Electrolytes and an amino blend may support work or exercise stamina, but their cognitive contribution is not individually disclosed.

Caffeine source and release profile are unspecified, so the effect is likely immediate rather than sustained. Taking the serving late in the day may disrupt sleep and reduce next-day productivity.

Study evidence
Caffeine Supportive 108 studies
Mental Focus
Mental Focus
Impact
High effect
B Goal FitC+ Strength of SupportC- CoverageC Formula Quality
Magnesium · 60 mgCaffeine · 100 mg

A clearly stated caffeine amount can provide practical short-term alertness. Green tea and green coffee may add stimulant support, but their active caffeine contribution is not separately shown.

The large amino blend is not itemized, so any neurotransmitter-precursor benefit cannot be judged. Electrolytes suit exercise use more than mental focus, and the formula lacks L-theanine or another balancing ingredient for smoother stimulation.

Study evidence
Caffeine Supportive 128 studies
Metabolism Boost
Metabolism Boost
Impact
Moderate effect
B+ Goal FitC- Strength of SupportC- CoverageC- Formula Quality
Magnesium · 60 mgGreen Tea · 50 mgCaffeine · 100 mg

Caffeine supplies a meaningful thermogenic and performance effect, while green tea provides a plausible complementary route. Green tea and green coffee are present at small, unstandardized amounts, so caffeine is doing most of the metabolic work.

The amino and electrolyte blends suit workout use but do not materially increase metabolic rate. The 100 mg caffeine serving can disrupt sleep or cause palpitations, so it should not be stacked casually with coffee, pre-workouts, or other stimulants.

Study evidence
Caffeine Disputed 40 studies
Green Tea Supportive 31 studies
Fitness
Fitness
Impact
Moderate effect
C- Goal FitC- Strength of SupportC CoverageC Formula Quality
Magnesium · 60 mgCaffeine · 100 mg

Caffeine can improve short-term alertness, while sodium, chloride, magnesium, and amino acids support exercise hydration and performance. The 100 mg caffeine amount is moderate and clearly disclosed.

Only 110 mg sodium and 60 mg magnesium are provided, and two broad blends do not reveal their individual ingredients or doses. The workout-oriented formula offers acute performance support rather than a broad foundation for long-term general health.

Study evidence
Caffeine Supportive 255 studies
Magnesium Disputed 29 studies
Sodium Supportive 96 studies

Ingredients

IngredientAmount per serving
Calories
5 Calorie(s)
Total Carbohydrates
1 Gram(s)
Magnesium
60 mg
Chloride
200 mg
Sodium
110 mg
Amino Blend
5 Gram(s)
Electrolyte Blend
440 mg
Caffeine
100 mg
Green Tea leaf extract
50 mg
Green Coffee bean extract
10 mg
Adults 18–50 Women
Report overview
Sodium · 110 mg OverallScore65
D Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyA+ Value

The label gives a sodium amount without naming its source, limiting purity assessment. 110 mg is below the target range for intense sweat replacement; supporting electrolytes are present, but their forms do not establish high bioavailability; no trace-mineral complex or buffering compound is disclosed. The disclosed carbohydrate or sugar load is low, and no artificial color is listed; the low serving cost provides strong value.

View ingredientView products
Chloride · 200 mg OverallScore60
D- Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyD+ Value

The drink mix supplies a meaningful amount of chloride and dissolves in water before use, which supports practical electrolyte replenishment. The exact chloride salt is not identified, leaving the ingredient source less clear than it could be. Value is middle of the range, and the caffeine may be unsuitable near bedtime or for people sensitive to stimulants.

View ingredientView products
Caffeine · 100 mg OverallScore57
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD- Value

The clearly stated caffeine amount fits the effective range, but its form or origin is not identified. No modified-release technology is disclosed, so the stimulant effect is likely immediate rather than extended. An above-median serving cost places the formula in the premium-priced range.

View ingredientView products
Loading alternative details
76 Performance

Total War Tiger's Blood

Redcon1
<p>Citrulline malate, beta-alanine, agmatine, taurine, and a strong multi-source stimulant blend create a potent pre-workout formula. Its ingredient focus makes it a suitable eligible alternative for the original’s main purpose. The high total caffeine load may cause sleep disruption, anxiety, or rapid heartbeat in sensitive users and should not be combined with other stimulants.</p>
70 Performance

Sport +Caffeine Wild Berry

Nuun
<p>The effervescent format supplies meaningful sodium with smaller amounts of potassium, chloride, and magnesium for exercise hydration. Its ingredient focus makes it a suitable eligible alternative for the original’s main purpose. Magnesium oxide is a weaker form, and neither caffeine nor green-tea actives are quantified.</p>
77 Performance

SaltStick Race Ready Electrolyte Caps Plus

SaltStick
<p>The compact electrolyte capsule combines sodium, potassium, chloride, calcium, magnesium, and a small caffeine amount for lighter activity. Its ingredient focus makes it a suitable eligible alternative for the original’s main purpose. Modest mineral depth and an unspecified sodium source limit its suitability for heavy sweat replacement.</p>
84 Budget

Sodium Chloride 1000 mg

Nutricost
<p>A simple sodium chloride tablet provides concentrated electrolyte replacement with excellent dose clarity and economy. Its lower serving cost makes it a more economical alternative to the original. The substantial sodium load suits specific replacement needs rather than unrestricted everyday use.</p>
82 Budget

SaltStick Electrolyte Caps

SaltStick
<p>A focused capsule provides useful chloride with supporting sodium, potassium, magnesium, calcium, and vitamin D. Its lower serving cost makes it a more economical alternative to the original. The sodium source is not identified and the mineral amounts suit moderate rather than very heavy sweat replacement.</p>
66 Budget

Green Tea Fat Burner

Applied Nutrition
<p>The formula combines a concentrated green tea extract with a moderate stimulant dose, but two vaguely named additions limit confidence in the complete blend. Its lower serving cost makes it a more economical alternative to the original. The larger supply offers better practical value than the smaller version.</p>
59 Value

Super HD

Cellucor
<p>Caffeine and a branded green tea phytosome provide a clear stimulant core at a low serving cost. Its balance of useful ingredients and serving value compares favorably with the original. A hidden thermogenic blend prevents a full assessment of potency, safety, and value, so transparency is the main weakness.</p>
63 Value

Essential AmiN.O. Energy + Electrolytes Watermelon Splash

ON Optimum Nutrition
<p>A clearly measured caffeine serving can support short-term alertness and exercise drive, while electrolytes and amino acids broaden workout utility. Its balance of useful ingredients and serving value compares favorably with the original. Two broad blends hide their contents, the electrolyte amounts are modest for heavy sweating, and caffeine may disrupt sleep or cause jitters in sensitive users.</p>
62 Value

Green Tea Fat Burner

Applied Nutrition
<p>The formula combines a concentrated green tea extract with a moderate stimulant dose, but two vaguely named additions make its full purpose hard to judge. Its balance of useful ingredients and serving value compares favorably with the original. The short supply also weakens value compared with the larger version.</p>
Report alternatives

Sources

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

  1. Effect of caffeine ingestion on time trial performance in cyclists: a systematic review and meta-analysis.
    Chen B; Ding L; Qin Q; Lei TH; Girard O; Cao Y · Journal of the International Society of Sports Nutrition · 2024
    Meta-analysis15 studies pooledFitness forCaffeine
  2. Negligible benefit of oral single-dose sodium bicarbonate on continuous running performance: systematic review with meta-analysis of randomized, double-blind, placebo-controlled trials.
    Miller LE; Bhattacharyya R; Katz SJ; Bhattacharyya M; Herbert WG · Journal of the International Society of Sports Nutrition · 2025
    Meta-analysis126 participants11 studies pooledFitness forSodium
  3. 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
  4. 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
  5. 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 Fitness forCaffeine
  6. Pre-Exercise Caffeine and Sodium Bicarbonate: Their Effects on Isometric Mid-Thigh Pull Performance in a Crossover, Double-Blind, Placebo-Controlled Study.
    Kaçoğlu C; Kirkaya İ; Ceylan Hİ; de Assis GG; Almeida-Neto P; Bayrakdaroğlu S; Chaves Oliveira C; Özkan A; Nikolaidis PT · Sports (Basel, Switzerland) · 2024
    Clinical trial19 participantsFitness forSodium
  7. 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
  8. 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
  9. 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
  10. Association Between Sodium Density and Grip Strength Among Older Korean Adults: A Nationwide Cross-Sectional Study.
    Noh HM; Park YS; Lee HJ; Roh YK; Song HJ · Clinical interventions in aging · 2020
    Cross-sectional study2,982 participantsFitness forSodium
  11. 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
  12. 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
  13. 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
  14. The effect of chronic progressive-dose sodium bicarbonate ingestion on CrossFit-like performance: A double-blind, randomized cross-over trial.
    Durkalec-Michalski K; Zawieja EE; Podgórski T; Łoniewski I; Zawieja BE; Warzybok M; Jeszka J · PloS one · 2018
    Randomized trial21 participantsFitness forSodium
  15. 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
  16. Caffeine, CYP1A2 Genotype, and Endurance Performance in Athletes.
    Guest N; Corey P; Vescovi J; El-Sohemy A · Medicine and science in sports and exercise · 2019
    Randomized trial101 participantsFitness forCaffeine
  17. 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
  18. Sodium Hyperhydration Improves Performance With No Change in Thermal and Cardiovascular Strain in Female Cyclists Exercising in the Heat Across the Menstrual Cycle.
    Convit L; Orellana L; Périard JD; Carr AJ; Warmington S; Beaugeois M; Abraham A; Snipe RMJ · International journal of sport nutrition and exercise metabolism · 2025
    Randomized trial12 participantsFitness forSodium
  19. 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
  20. Placebo in sports nutrition: a proof-of-principle study involving caffeine supplementation.
    Saunders B; de Oliveira LF; da Silva RP; de Salles Painelli V; Gonçalves LS; Yamaguchi G; Mutti T; Maciel E; Roschel H; Artioli GG; Gualano B · Scandinavian journal of medicine & science in sports · 2018
    Randomized trial42 participantsFitness forCaffeine
  21. 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
  22. Increased blood pH but not performance with sodium bicarbonate supplementation in elite rugby union players.
    Cameron SL; McLay-Cooke RT; Brown RC; Gray AR; Fairbairn KA · International journal of sport nutrition and exercise metabolism · 2010
    Randomized trial25 participantsFitness forSodium
  23. 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
  24. 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
  25. 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
  26. Effect of sodium bicarbonate on prolonged running performance: A randomized, double-blind, cross-over study.
    Freis T; Hecksteden A; Such U; Meyer T · PloS one · 2017
    Randomized trial18 participantsFitness forSodium
  27. 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
  28. Acute Effects of Caffeine Supplementation on Physical Performance, Physiological Responses, Perceived Exertion, and Technical-Tactical Skills in Combat Sports: A Systematic Review and Meta-Analysis.
    Delleli S; Ouergui I; Messaoudi H; Trabelsi K; Ammar A; Glenn JM; Chtourou H · Nutrients · 2022
    Meta-analysis26 studies pooledFitness forCaffeine
  29. 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
  30. International Society of Sports Nutrition position stand: sodium bicarbonate and exercise performance.
    Grgic J; Pedisic Z; Saunders B; Artioli GG; Schoenfeld BJ; McKenna MJ; Bishop DJ; Kreider RB; Stout JR; Kalman DS; Arent SM; VanDusseldorp TA; Lopez HL; Ziegenfuss TN; Burke LM; Antonio J; Campbell BI · Journal of the International Society of Sports Nutrition · 2021
    Guideline / consensusFitness forSodium
  31. 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
  32. 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
  33. 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
  34. No additive effect of creatine, caffeine, and sodium bicarbonate on intense exercise performance in endurance-trained individuals.
    Moesgaard L; Jessen S; Christensen PM; Bangsbo J; Hostrup M · Scandinavian journal of medicine & science in sports · 2024
    Randomized trial23 participantsFitness forSodium
  35. 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
  36. 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
  37. 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
  38. Effect of sodium phosphate supplementation on repeated high-intensity cycling efforts.
    Brewer CP; Dawson B; Wallman KE; Guelfi KJ · Journal of sports sciences · 2015
    Randomized trial17 participantsFitness forSodium
  39. 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
  40. 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
  41. 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
  42. Total magnesium intake and risk of frailty in older women.
    Struijk EA; Fung TT; Bischoff-Ferrari HA; Willett WC; Lopez-Garcia E · Journal of cachexia, sarcopenia and muscle · 2024
    Cohort study81,524 participantsFitness forMagnesium
  43. Dietary Magnesium May Be Protective for Aging of Bone and Skeletal Muscle in Middle and Younger Older Age Men and Women: Cross-Sectional Findings from the UK Biobank Cohort.
    Welch AA; Skinner J; Hickson M · Nutrients · 2018
    Cross-sectional study156,575 participantsFitness forMagnesium
  44. Dietary Magnesium Is Positively Associated With Skeletal Muscle Power and Indices of Muscle Mass and May Attenuate the Association Between Circulating C-Reactive Protein and Muscle Mass in Women.
    Welch AA; Kelaiditi E; Jennings A; Steves CJ; Spector TD; MacGregor A · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2016
    Cross-sectional study2,570 participantsFitness forMagnesium
  45. Nutritional intake as a determinant of high-speed resistance and multicomponent training efficacy on strength in older women at risk of sarcopenia. A randomized clinical trial.
    Polo-Ferrero L; Recio-Rodriguez JI; González-Manzano S; Martín-Vallejo J; Barbero-Iglesias FJ; Montero-Errasquín B; Cruz-Jentoft AJ; Méndez-Sánchez R · Clinical nutrition (Edinburgh, Scotland) · 2025
    Randomized trial80 participantsFitness forMagnesium
  46. Minerals and Sarcopenia in Older Adults: An Updated Systematic Review.
    van Dronkelaar C; Fultinga M; Hummel M; Kruizenga H; Weijs PJM; Tieland M · Journal of the American Medical Directors Association · 2023
    Systematic review45 studies pooledFitness forMagnesium
  47. Additive effects of beta-alanine and sodium bicarbonate on upper-body intermittent performance.
    Tobias G; Benatti FB; de Salles Painelli V; Roschel H; Gualano B; Sale C; Harris RC; Lancha AH; Artioli GG · Amino acids · 2013
    Randomized trial37 participantsFitness forSodium
  48. Sodium bicarbonate supplementation improves severe-intensity intermittent exercise under moderate acute hypoxic conditions.
    Deb SK; Gough LA; Sparks SA; McNaughton LR · European journal of applied physiology · 2018
    Randomized trial11 participantsFitness forSodium
  49. The effects of sodium bicarbonate ingestion on swimming interval performance in trained competitive swimmers.
    Gough LA; Newbury JW; Price M · European journal of applied physiology · 2023
    Randomized trial14 participantsFitness forSodium
  50. 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
  51. Effects of caffeine on mood and performance: a study of realistic consumption.
    Brice CF; Smith AP · Psychopharmacology · 2003
    Clinical trial24 participantsMental Focus forCaffeine
  52. 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
  53. 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
  54. 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
  55. 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
  56. 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
  57. Effect of green tea on glucose control and insulin sensitivity: a meta-analysis of 17 randomized controlled trials.
    Liu K; Zhou R; Wang B; Chen K; Shi LY; Zhu JD; Mi MT · The American journal of clinical nutrition · 2013
    Meta-analysis1,133 participants17 studies pooledMetabolism Boost forGreen Tea
  58. Green tea extract ingestion, fat oxidation, and glucose tolerance in healthy humans.
    Venables MC; Hulston CJ; Cox HR; Jeukendrup AE · The American journal of clinical nutrition · 2008
    Randomized trial23 participantsMetabolism Boost forGreen Tea
  59. Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans.
    Dulloo AG; Duret C; Rohrer D; Girardier L; Mensi N; Fathi M; Chantre P; Vandermander J · The American journal of clinical nutrition · 1999
    Randomized trial10 participantsMetabolism Boost forGreen Tea
  60. A 60-Day Green Tea Extract Supplementation Counteracts the Dysfunction of Adipose Tissue in Overweight Post-Menopausal and Class I Obese Women.
    Rondanelli M; Gasparri C; Perna S; Petrangolini G; Allegrini P; Fazia T; Bernardinelli L; Cavioni A; Mansueto F; Oberto L; Patelli Z; Tartara A; Riva A · Nutrients · 2022
    Randomized trial28 participantsMetabolism Boost forGreen Tea
  61. Epigallocatechin gallate alleviates non-alcoholic fatty liver disease through the inhibition of the expression and activity of Dipeptide kinase 4.
    Yang M; Yan R; Sha R; Wang X; Zhou S; Li B; Zheng Q; Cao Y · Clinical nutrition (Edinburgh, Scotland) · 2024
    Randomized trialMetabolism Boost forGreen Tea
  62. Effects of caffeine on alertness.
    Zwyghuizen-Doorenbos A; Roehrs TA; Lipschutz L; Timms V; Roth T · Psychopharmacology · 1990
    Randomized trial24 participantsProductivity Boost forCaffeine
  63. 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
  64. 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
  65. 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
  66. 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
  67. 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
  68. 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
  69. 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
  70. 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
  71. 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
  72. A green tea extract high in catechins reduces body fat and cardiovascular risks in humans.
    Nagao T; Hase T; Tokimitsu I · Obesity (Silver Spring, Md.) · 2007
    Randomized trial240 participantsWeight Loss forGreen Tea
  73. Green tea beverages enriched with catechins with a galloyl moiety reduce body fat in moderately obese adults: a randomized double-blind placebo-controlled trial.
    Kobayashi M; Kawano T; Ukawa Y; Sagesaka YM; Fukuhara I · Food & function · 2016
    Randomized trial126 participantsWeight Loss forGreen Tea
  74. Green tea catechin consumption enhances exercise-induced abdominal fat loss in overweight and obese adults.
    Maki KC; Reeves MS; Farmer M; Yasunaga K; Matsuo N; Katsuragi Y; Komikado M; Tokimitsu I; Wilder D; Jones F; Blumberg JB; Cartwright Y · The Journal of nutrition · 2009
    Randomized trial132 participantsWeight Loss forGreen Tea
  75. Effect of Decaffeinated Green Tea Polyphenols on Body Fat and Precocious Puberty in Obese Girls: A Randomized Controlled Trial.
    Xie L; Tang Q; Yao D; Gu Q; Zheng H; Wang X; Yu Z; Shen X · Frontiers in endocrinology · 2022
    Randomized trial62 participantsWeight Loss forGreen Tea
  76. Effectiveness of green tea on weight reduction in obese Thais: A randomized, controlled trial.
    Auvichayapat P; Prapochanung M; Tunkamnerdthai O; Sripanidkulchai BO; Auvichayapat N; Thinkhamrop B; Kunhasura S; Wongpratoom S; Sinawat S; Hongprapas P · Physiology & behavior · 2008
    Randomized trial60 participantsWeight Loss forGreen Tea