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Nugenix Thermo

Nugenix
4.0
★ ★ ★ ★ ★
(4559 ratings)
Chromium 200 mcg
Caffeine 150 mg
Guarana
Ginger
Green Tea 50 mg
Product Image
Score61
Strong short-term stimulation and clear thermogenic intent come with a near-limit caffeine load. The expensive formula is less impressive beyond its stimulants.
How scoring works
Quantity:60 Capsule(s) • (30 servings)
Goals:
Weight Loss
Metabolism Boost
Energy
Mental Focus

Score 61

Strong short-term stimulation and clear thermogenic intent come with a near-limit caffeine load. The expensive formula is less impressive beyond its stimulants.
How scoring works
$49.99($1.66 per serving)
Amazon
$ 49.99
iHerb
$ 49.99
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Analysis

Caffeine anhydrous, green coffee, coffee fruit, guarana, green tea, cayenne, and chromium create a forceful stimulant-based metabolic formula. The red-orange extract and several active markers are disclosed, giving the blend more substance than a caffeine-only capsule.

Adding the listed caffeine contributions produces roughly 375 mg per serving, close to the usual adult daily limit before any coffee or other supplements. L-carnitine is far below a focused amount, while tea, ginger, guarana, and coffee active-marker details remain incomplete or difficult to interpret.

Nugenix Thermo fits experienced stimulant users seeking an aggressive short-term thermogenic effect. It is a poor match for caffeine-sensitive people, evening use, heart-rate or blood-pressure concerns, or anyone who wants balanced long-term metabolic support.

Who is it for
  • Experienced stimulant users
  • Adults seeking a strong daytime thermogenic formula
  • People able to avoid other caffeine on serving days
Best for
  • Acute alertness
  • Stimulant-based thermogenesis
  • Pre-exercise energy

Pros

  • Meaningful immediate-release caffeine
  • Multiple thermogenic pathways
  • Discloses many individual ingredient amounts

Cons

  • Total caffeine is not summarized clearly
  • Several secondary ingredients are underdosed
  • High serving cost

Warnings

  • Roughly 375 mg of listed caffeine sources may cause jitters, anxiety, rapid heartbeat, or sleep disruption
  • Do not combine the serving with coffee, energy drinks, or stimulant pre-workouts
  • Cayenne, caffeine, and stimulant botanicals may be unsuitable for people managing blood pressure or heart-rate concerns

Nutrient quality

62 Moderate impact

Several standardized thermogenic ingredients and a clear anhydrous caffeine amount strongly fit acute stimulation. Near-limit combined caffeine, modest supporting doses, and overlapping stimulant sources make the formula aggressive and crowded.

Ingredient transparency

78 High impact

Individual ingredients have listed amounts and no proprietary blend hides them. Consumers must add several caffeine entries to estimate the total, while missing non-active ingredients and directions reduce clarity.

Customer satisfaction

66 High impact

The supplied average is mixed 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

31 Situational impact

A strong stimulant effect and several branded or standardized ingredients provide some functional value. High serving cost, safety concerns, and weak secondary dosing make category value poor.

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Goals

Weight Loss
Weight Loss
Impact
High effect
A- Goal FitB Strength of SupportB+ CoverageC Formula Quality
Green Tea · 50 mgCaffeine · 150 mg

Caffeine, cayenne, green coffee, coffee fruit, guarana, green tea, and a standardized red-orange extract directly target thermogenesis and metabolic activity. The formulation clearly fits a stimulant-based weight-loss use.

The explicit caffeine dose is meaningful, but EGCG, carnitine, and several secondary extracts remain modest and the total caffeine from all sources is unclear. Stacked caffeine sources may increase jitters, rapid heartbeat, blood pressure, and sleep disruption in sensitive users.

Study evidence
Caffeine Disputed 14 studies
Green Tea Supportive 42 studies
Metabolism Boost
Metabolism Boost
Impact
High effect
A- Goal FitB- Strength of SupportB- CoverageC- Formula Quality
Niacin · 16 mgGreen Tea · 50 mgCaffeine · 150 mg

Caffeine, green tea, capsaicinoids, coffee extracts, and chromium directly target thermogenesis and glucose handling. The strong stimulant emphasis is likely to affect short-term energy expenditure more than the low-dose carnitine and secondary botanicals.

Several caffeine sources must be added together, creating a total near the usual adult daily safety ceiling. People sensitive to stimulants or with blood-pressure or heart-rate concerns should avoid combining it with other caffeine sources.

Study evidence
Caffeine Disputed 40 studies
Chromium Supportive 47 studies
Green Tea Supportive 31 studies
Energy
Energy
Impact
High effect
A- Goal FitB Strength of SupportC+ CoverageD Formula Quality
Caffeine · 150 mg

Multiple caffeine sources can produce a strong short-term increase in alertness and perceived energy. Anhydrous caffeine provides a fast, well-established stimulant mechanism.

The total stimulant load requires adding several botanical caffeine sources and appears close to the usual daily limit, while carnitine is too low to add meaningful metabolic support. Combining roughly 375 mg of listed caffeine sources may cause jitteriness, rapid heartbeat, anxiety, or sleep disruption and is a poor fit for caffeine-sensitive users.

Study evidence
Caffeine Supportive 68 studies
Mental Focus
Mental Focus
Impact
High effect
B- Goal FitB Strength of SupportC CoverageD+ Formula Quality
Caffeine · 150 mg

Caffeine anhydrous and several caffeinated plant extracts provide strong alertness and may improve reaction time temporarily. Green-tea catechins and coffee-fruit compounds add stimulant-related support.

The total caffeine exposure is not presented as one clear number, and no theanine or adaptogen balances the multi-source stimulant load. The combined stimulant profile may cause jitteriness, sleep disruption, increased heart rate, or blood-pressure effects in sensitive users.

Study evidence
Caffeine Supportive 128 studies
Productivity Boost
Productivity Boost
Impact
Moderate effect
B- Goal FitB- Strength of SupportC- CoverageD Formula Quality
Caffeine · 150 mg

A large caffeine load directly supports acute alertness, but the formula is designed for thermogenesis rather than balanced cognitive performance. Caffeine has strong human evidence for vigilance, while the added botanicals offer less dependable productivity support.

The combined caffeine sources approach the usual adult daily limit and may be excessive for one serving. Caffeine anhydrous is clear, but consumers must add several botanical caffeine sources to determine the total. The near-limit caffeine load may cause jitteriness, anxiety, fast heartbeat, or sleep disruption, especially when combined with other stimulants.

Study evidence
Caffeine Supportive 108 studies
Fitness
Fitness
Impact
Moderate effect
B- Goal FitC Strength of SupportD+ CoverageD+ Formula Quality
Caffeine · 150 mg

Multiple caffeine sources can increase alertness and training drive. Cayenne and standardized coffee or tea extracts add a thermogenic focus.

The total caffeine contribution from every source is not clearly summed, and carnitine is far below a performance dose. The stimulant stacking may also increase jitters, sleep disruption, or a racing heartbeat in sensitive users.

Study evidence
Caffeine Supportive 255 studies

Ingredients

IngredientAmount per serving
Vitamin C (Morosil)
 17 mg
Niacin (Niacinamide)
 16 mg
Chromium (Chromium Picolinate)
 200 mcg
Sicilian Red Orange extract (Anthocyanins, Flavanones, Hydroxycinnamic Acids)
 400 mg
Caffeine (Caffeine Anhydrous)
 150 mg
Cayenne extract (Capsaicinoids)
 100 mg
Coleus forskohlii extract (Forskolin)
 100 mg
Green Coffee (Coffea canephora) extract (Caffeine, Chlorogenic Acids)
 75 mg
whole Coffee fruit (Coffea arabica) extract (Caffeine)
 50 mg
Ginger extract (Gingerols)
 50 mg
Guarana extract (Caffeine)
 50 mg
Green Tea extract (Caffeine, Catechins, EGCG)
 50 mg
L-Carnitine L-Tartrate
30 mg
Men 18–50
Report overview
Chromium (Chromium Picolinate) · 200 mcg OverallScore64
B- Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value

Chromium picolinate supplies an effective dose in a bioavailable form. The label shows only one chromium weight, so elemental and compound amounts are not fully distinguished. Cost efficiency is poor because the chromium dose is expensive and no qualifying companion dose is disclosed.

View ingredientView products
Caffeine (Caffeine Anhydrous) · 150 mg OverallScore47
C Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyF Value

Anhydrous caffeine anchors the formula with a high-quality immediate-release form, supported by several clearly identified botanical caffeine sources. The consumer must add those sources to find the total, which lands near the daily safety ceiling and raises side-effect concerns. Very high serving cost further limits its appeal.

View ingredientView products
Guarana (Caffeine) · 50 mg OverallScore44
B+ Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyF Value

The 50 mg guarana extract names caffeine as its marker but does not state the caffeine yield or a standardization percentage. Its guarana dose is low, and the cost per active amount is very high for this collection. Caffeine anhydrous plus several caffeine-bearing botanicals creates a substantial but partly unquantified stimulant load, which may not suit caffeine-sensitive users.

View ingredientView products
Loading alternative details
83 Performance

TheanineUP Focused Energy

California Gold Nutrition
<p>A balanced theanine and caffeine pairing supports alert focus, with cocoa and matcha adding mild complementary stimulation. Compared with Nugenix Thermo, its more coherent or better-characterized ingredients may address the original’s very heavy combined stimulant exposure and lightly dosed secondary ingredients more effectively, although its stated limitations remain relevant.</p>
71 Performance

Rapidcuts Shredded

ALLMAX
<p>A substantial multi-source caffeine dose provides the clearest energy and thermogenic effect, while many botanical additions are too small or poorly quantified to contribute much independently. Compared with Nugenix Thermo, its more coherent or better-characterized ingredients may address the original’s very heavy combined stimulant exposure and lightly dosed secondary ingredients more effectively, although its stated limitations remain relevant.</p>
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. Compared with Nugenix Thermo, its more coherent or better-characterized ingredients may address the original’s very heavy combined stimulant exposure and lightly dosed secondary ingredients more effectively, although its stated limitations remain relevant.</p>
51 Budget

Green Tea Fat Metabolizer

Irwin Naturals
<p>Green tea, caffeine, chromium, and bitter orange create a metabolism-focused stimulant formula, while fish oil adds broader support. Its lower recurring cost improves accessibility versus Nugenix Thermo, while the stated limitations still matter when choosing a daily formula.</p>
59 Budget

Super HD

Cellucor
<p>Caffeine and a branded green tea phytosome provide a clear stimulant core at a low serving cost. Its lower recurring cost improves accessibility versus Nugenix Thermo, while the stated limitations still matter when choosing a daily formula.</p>
50 Budget

NoPhedra

Absolute Nutrition
<p>The stimulant-heavy formula may increase acute alertness, but key caffeine and synephrine yields are not reliably clear and tyrosine is lightly dosed. Its lower recurring cost improves accessibility versus Nugenix Thermo, while the stated limitations still matter when choosing a daily formula.</p>
66 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 limit confidence in the complete blend. Compared with Nugenix Thermo, a lower recurring cost and clearer practical strengths improve the quality-to-cost trade-off, with the stated formula gaps as the main limitation.</p>
57 Value

Essential AMIN.O. Energy Juicy Strawberry Burst

Optimum Nutrition
<p>A modest caffeine dose can support lighter energy needs, but the amino acids are hidden inside a single blend and cannot be judged individually. Compared with Nugenix Thermo, a lower recurring cost and clearer practical strengths improve the quality-to-cost trade-off, with the stated formula gaps as the main limitation.</p>
61 Value

Combat Cravings

OLLY
<p>A very high chromium amount is paired with small green tea, ginger, and goji additions. Compared with Nugenix Thermo, a lower recurring cost and clearer practical strengths improve the quality-to-cost trade-off, with the stated formula gaps as the main limitation.</p>
Report alternatives

Sources

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

  1. The Influences of Chromium Supplementation on Metabolic Status in Patients with Type 2 Diabetes Mellitus and Coronary Heart Disease.
    Farrokhian A; Mahmoodian M; Bahmani F; Amirani E; Shafabakhsh R; Asemi Z · Biological trace element research · 2021
    Randomized trial64 participantsWeight Loss forChromium
  2. Chromium picolinate balances the metabolic and clinical markers in nonalcoholic fatty liver disease: a randomized, double-blind, placebo-controlled trial.
    Kooshki F; Moradi F; Karimi A; Niazkar HR; Khoshbaten M; Maleki V; Pourghassem Gargari B · European journal of gastroenterology & hepatology · 2021
    Randomized trial46 participantsWeight Loss forChromium
  3. Chromium treatment has no effect in patients with poorly controlled, insulin-treated type 2 diabetes in an obese Western population: a randomized, double-blind, placebo-controlled trial.
    Kleefstra N; Houweling ST; Jansman FG; Groenier KH; Gans RO; Meyboom-de Jong B; Bakker SJ; Bilo HJ · Diabetes care · 2006
    Randomized trial46 participantsWeight Loss forChromium
  4. Association Between Essential and Non-essential Metals, Body Composition, and Metabolic Syndrome in Adults.
    Ngu YJ; Skalny AV; Tinkov AA; Tsai CS; Chang CC; Chuang YK; Nikolenko VN; Zotkin DA; Chiu CF; Chang JS · Biological trace element research · 2022
    Cross-sectional study150 participantsWeight Loss forChromium
  5. 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
  6. Safety and efficacy of long-term treatment with ephedrine, caffeine and an ephedrine/caffeine mixture.
    Toubro S; Astrup AV; Breum L; Quaade F · International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity · 1993
    Randomized trial180 participantsWeight Loss forCaffeine
  7. Interventions associated with brown adipose tissue activation and the impact on energy expenditure and weight loss: A systematic review.
    Perez LC; Perez LT; Nene Y; Umpierrez GE; Davis GM; Pasquel FJ · Frontiers in endocrinology · 2022
    Systematic review47 studies pooledWeight Loss forCaffeine
  8. Maternal, but not paternal or grandparental, caffeine intake is associated with childhood obesity and adiposity: The Lifeways Cross-Generation Cohort Study.
    Chen LW; Murrin CM; Mehegan J; Kelleher CC; Phillips CM; Cross-Generation Cohort Study for the Lifeways · The American journal of clinical nutrition · 2020
    Cohort study558 participantsWeight Loss forCaffeine
  9. Systematic review and meta-analysis of the efficacy and safety of chromium supplementation in diabetes.
    Suksomboon N; Poolsup N; Yuwanakorn A · Journal of clinical pharmacy and therapeutics · 2015
    Meta-analysis25 studies pooledMetabolism Boost forChromium
  10. The Effects of Supplementation with Chromium on Insulin Resistance Indices in Women with Polycystic Ovarian Syndrome: A Systematic Review and Meta-Analysis of Randomized Clinical Trials.
    Heshmati J; Omani-Samani R; Vesali S; Maroufizadeh S; Rezaeinejad M; Razavi M; Sepidarkish M · Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme · 2018
    Meta-analysis268 participants5 studies pooledMetabolism Boost forChromium
  11. Improved meta-analytic methods show no effect of chromium supplements on fasting glucose.
    Bailey CH · Biological trace element research · 2014
    Meta-analysis809 participants16 studies pooledMetabolism Boost forChromium
  12. Chromium supplementation in non-obese non-diabetic subjects is associated with a decline in insulin sensitivity.
    Masharani U; Gjerde C; McCoy S; Maddux BA; Hessler D; Goldfine ID; Youngren JF · BMC endocrine disorders · 2013
    Randomized trial31 participantsMetabolism Boost forChromium
  13. 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
  14. Epigallocatechin-3-gallate and postprandial fat oxidation in overweight/obese male volunteers: a pilot study.
    Thielecke F; Rahn G; Böhnke J; Adams F; Birkenfeld AL; Jordan J; Boschmann M · European journal of clinical nutrition · 2011
    Randomized trial10 participantsMetabolism Boost forGreen Tea
  15. Effects of green tea or green tea extract on insulin sensitivity and glycaemic control in populations at risk of type 2 diabetes mellitus: a systematic review and meta-analysis of randomised controlled trials.
    Wang X; Tian J; Jiang J; Li L; Ying X; Tian H; Nie M · Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2015
    Meta-analysis510 participants7 studies pooledMetabolism Boost forGreen Tea
  16. 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
  17. Effects of caffeine on energy metabolism, heart rate, and methylxanthine metabolism in lean and obese women.
    Bracco D; Ferrarra JM; Arnaud MJ; Jéquier E; Schutz Y · The American journal of physiology · 1995
    Clinical trial20 participantsMetabolism Boost forCaffeine
  18. Decaffeinated coffee improves insulin sensitivity in healthy men.
    Reis CEG; Paiva CLRDS; Amato AA; Lofrano-Porto A; Wassell S; Bluck LJC; Dórea JG; da Costa THM · The British journal of nutrition · 2019
    Randomized trial17 participantsMetabolism Boost forCaffeine
  19. Acute caffeine ingestion reduces insulin sensitivity in healthy subjects: a systematic review and meta-analysis.
    Shi X; Xue W; Liang S; Zhao J; Zhang X · Nutrition journal · 2017
    Meta-analysis7 studies pooledMetabolism Boost forCaffeine
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. Effects of caffeine on mood and performance: a study of realistic consumption.
    Brice CF; Smith AP · Psychopharmacology · 2003
    Clinical trial24 participantsMental Focus forCaffeine
  34. 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
  35. 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
  36. 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 participantsMetabolism Boost forCaffeine
  37. 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
  38. 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
  39. Elevated intakes of supplemental chromium improve glucose and insulin variables in individuals with type 2 diabetes.
    Anderson RA; Cheng N; Bryden NA; Polansky MM; Cheng N; Chi J; Feng J · Diabetes · 1997
    Randomized trial180 participantsMetabolism Boost forChromium
  40. Chromium Supplementation and the Effects on Metabolic Status in Women with Polycystic Ovary Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial.
    Jamilian M; Asemi Z · Annals of nutrition & metabolism · 2016
    Randomized trial64 participantsMetabolism Boost forChromium
  41. A Comprehensive insight into the effect of chromium supplementation on oxidative stress indices in diabetes mellitus: A systematic review.
    Kooshki F; Tutunchi H; Vajdi M; Karimi A; Niazkar HR; Shoorei H; Pourghassem Gargari B · Clinical and experimental pharmacology & physiology · 2024
    Systematic review33 studies pooledMetabolism Boost forChromium
  42. Comparison of nutritional supplements in improving glycolipid metabolism and endocrine function in polycystic ovary syndrome: a systematic review and network meta-analysis.
    Hu X; Wang W; Su X; Peng H; Tan Z; Li Y; Huang Y · PeerJ · 2023
    Meta-analysis2,362 participants41 studies pooledMetabolism Boost forChromium
  43. [Chromium supplementation in patients with type 2 diabetes and high risk of type 2 diabetes: a meta-analysis of randomized controlled trials].
    San Mauro-Martin I; Ruiz-León AM; Camina-Martín MA; Garicano-Vilar E; Collado-Yurrita L; Mateo-Silleras Bd; Redondo Del Río Mde P · Nutricion hospitalaria · 2017
    Meta-analysis13 studies pooledMetabolism Boost forChromium
  44. 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
  45. 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
  46. 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
  47. 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
  48. Effects of caffeine on alertness.
    Zwyghuizen-Doorenbos A; Roehrs TA; Lipschutz L; Timms V; Roth T · Psychopharmacology · 1990
    Randomized trial24 participantsProductivity Boost forCaffeine
  49. 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
  50. 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
  51. 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
  52. 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
  53. 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
  54. 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
  55. 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
  56. 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
  57. 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
  58. 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
  59. 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
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  60. Effect of Decaffeinated Green Tea Polyphenols on Body Fat and Precocious Puberty in Obese Girls: A Randomized Controlled Trial.
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  61. Effectiveness of green tea on weight reduction in obese Thais: A randomized, controlled trial.
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