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Metabolism Weight Management

LifeSeasons
4.2
★ ★ ★ ★ ★
(835 ratings)
Theobromine 50 mg
Chromium 500 mcg
Theanine 75 mg
Green Tea 450 mg
Product Image
Score73
A purposeful metabolism blend led by standardized tea and coffee extracts, balanced by unknown caffeine exposure, concentrated EGCG, and several modest supporting doses.
How scoring works
Quantity:70 Capsule(s) • (23 servings)
Goals:
Weight Loss
Metabolism Boost
Anti-Aging
Anti-Inflammatory Support

Score 73

A purposeful metabolism blend led by standardized tea and coffee extracts, balanced by unknown caffeine exposure, concentrated EGCG, and several modest supporting doses.
How scoring works
$25.99($1.13 per serving)
iHerb
$ 25.99
Pure Formulas
$ 25.99
Amazon
$ 25.99
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Analysis

Green tea and green coffee provide the strongest weight-management rationale through standardized polyphenols and chlorogenic acid. Chromium, cayenne, cocoa, and theobromine add glucose-metabolism and thermogenic support across related pathways.

The main extract weights and several markers are stated, which is useful for judging formula depth. Total caffeine is not disclosed, while L-theanine and theobromine are present at mild supporting amounts rather than full standalone doses.

The blend fits stimulant-tolerant adults seeking a multi-pathway metabolism product rather than dramatic appetite suppression or broad nutrition. Apple cider vinegar and some smaller ingredients add more label breadth than meaningful dose depth, and the serving cost is relatively high.

Who is it for
  • Stimulant-tolerant adults seeking metabolism support
  • People wanting green tea and green coffee in one formula
  • Users who can take concentrated extracts with food
Best for
  • Weight-management support
  • Thermogenic and metabolic pathways
  • Focused-alertness support

Pros

  • Meaningful standardized green tea extract
  • Green coffee chlorogenic acid is identified
  • Multiple coherent metabolism pathways
  • Chromium uses an organic form

Cons

  • Total caffeine is not disclosed
  • Theanine and theobromine are modestly dosed
  • Apple cider vinegar amount is small
  • No dedicated absorption technology

Warnings

  • Take concentrated green tea extract with food because high EGCG exposure while fasting may stress the liver
  • Undisclosed caffeine plus theobromine may cause jitteriness, palpitations, or sleep disruption
  • Chromium may alter glucose control, so people using diabetes medicines should seek individualized guidance
  • Cayenne may aggravate reflux or stomach irritation in sensitive users

Nutrient quality

75 High impact

Standardized tea and coffee extracts provide the main dose and form strengths. High chromium, unclear caffeine exposure, and several modest supporting ingredients create a mixed safety and potency profile.

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Ingredient transparency

81 Highest impact

All listed actives have weights and no proprietary blend hides them. Duplicate green tea marker entries, missing caffeine disclosure, absent inactive ingredients, and incomplete use directions reduce clarity.

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Customer satisfaction

67 High impact

The supplied average rating is favorable and backed by a large review pool. No review text is available to assess recurring complaints or weight-management experiences.

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Value for money

65 High impact

Substantial standardized extracts support fair formula value. The serving cost is only moderately competitive because several supporting ingredients are lightly dosed.

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Report analysis

Goals

Weight Loss
Impact
Highest effect
A Goal FitA- Strength of SupportA- CoverageB+ Formula Quality
Green Tea · 450 mg

Standardized green tea and green coffee extracts directly target thermogenesis and metabolic support, while cayenne and theobromine add complementary stimulation. Chromium may support glucose metabolism, and L-theanine may make the stimulant profile feel smoother.

The formula covers several weight-management pathways, but apple cider vinegar and some supporting botanicals appear modest. Caffeine content is not stated, so stimulant exposure and sleep impact cannot be judged reliably.

Study evidence
Chromium No effect 24 studies
Green Tea Supportive 42 studies
Theanine Not classified

No linked studies yet.

Metabolism Boost
Impact
Highest effect
A- Goal FitB+ Strength of SupportB+ CoverageB Formula Quality
Green Tea · 450 mg

Standardized green tea, green coffee, chromium, cayenne, and theobromine target thermogenesis, fat oxidation, and glucose handling through several relevant pathways. Evidence is strongest for green tea compounds and stimulant-related energy expenditure, while several supporting botanicals have smaller or less consistent effects.

The main extract amounts are disclosed, but total caffeine content and some standardization details are missing. Concentrated green tea extract can rarely affect the liver, especially when taken fasting, while undisclosed caffeine plus theobromine may be unsuitable for stimulant-sensitive users.

Study evidence
Chromium Supportive 47 studies
Green Tea Supportive 31 studies
Anti-Aging
Impact
High effect
B- Goal FitB+ Strength of SupportB CoverageC Formula Quality
Green Tea · 450 mg

Standardized green tea and green coffee extracts target oxidative stress and metabolic aging. The stated EGCG and chlorogenic-acid amounts are meaningful, while caffeine content is not disclosed.

Theobromine and cayenne broaden metabolic effects but add stimulation rather than restorative support. A high EGCG amount can stress the liver when taken fasting, and unknown caffeine exposure makes tolerance harder to predict.

Study evidence
Green Tea Supportive 9 studies
Anti-Inflammatory Support
Impact
High effect
B+ Goal FitB+ Strength of SupportC CoverageC+ Formula Quality
Green Tea · 450 mg

A strongly concentrated green tea extract provides a direct antioxidant and inflammatory-signaling mechanism. Green coffee, cocoa, cayenne, and theanine add complementary metabolic and oxidative-stress support, though the design is aimed primarily at weight management.

The EGCG amount appears meaningful and is clearly stated, but no special absorption system is listed. Undisclosed caffeine from green tea and green coffee makes stimulant exposure uncertain for sensitive users.

Study evidence
Green Tea Mixed 16 studies
Cognitive Support
Impact
Moderate effect
C- Goal FitC+ Strength of SupportD CoverageC Formula Quality
Green Tea · 450 mgTheanine · 75 mg

The formula offers focused-alertness support through concentrated green tea, L-theanine, green coffee, cocoa, and theobromine. Its main purpose is weight management, so support for memory and broader brain health remains secondary.

The stimulant-and-theanine pairing is coherent, but the L-theanine amount is mild and total caffeine is not disclosed. The high EGCG amount may be harder to tolerate, particularly when taken without food, and the unknown stimulant load makes sensitivity difficult to judge.

Study evidence
Green Tea Supportive 32 studies
Theanine Supportive 25 studies
Skin Health
Impact
Moderate effect
C Goal FitC Strength of SupportD+ CoverageF Formula Quality
Green Tea · 450 mg

Green tea polyphenols may support antioxidant defense and resilience to environmental stress, but the formula is designed for metabolism rather than skin. Green coffee, cocoa, cayenne, and metabolic ingredients add only indirect skin relevance.

The green tea amount is substantial, though the supplied entries do not clearly separate extract weight from EGCG and total polyphenol yields. Multiple stimulant-like and weight-management ingredients weaken focus on skin structure or hydration.

Study evidence
Green Tea Supportive 37 studies

Ingredients

IngredientAmount per serving
Chromium (Chromium Niacinate)
500 mcg
Green Tea leaf extract (EGCG, total Polyphenols)
450 mg
Green Coffee bean extract (Chlorogenic Acid)
250 mg
Andean Cocoa seed extract
200 mg
Apple Cider Vinegar
200 mg
Cayenne Pepper
100 mg
L-Theanine
75 mg
Theobromine
50 mg
Gluten Free Adults 18–50 Dairy Free Vegetarian
Report overview
Theobromine · 50 mg OverallScore79
A- Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyC Value

Standalone theobromine provides a clearly identified active ingredient, though no purity percentage is stated. The amount is suited to sensitive users or a supporting role rather than a full-strength standalone serving. Value is close to the collection norm, while the combined green tea and green coffee extracts may increase stimulant sensitivity for some users.

B- Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyD- Value

A well-absorbed organic chromium form supports ingredient quality. The 500 mcg amount provides targeted potency, though the label gives only one weight rather than separating elemental chromium from compound weight. Standardized serving value is weak when chromium is the main purchase goal.

Theanine · 75 mg OverallScore70
B+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value

The formula uses the active L-isomer, but no branded source or purity testing is identified. Its 75 mg amount offers mild support rather than a full relaxation or focus dose. Cost per active amount is high, and the surrounding weight-management ingredients do not clearly improve theanine-specific value.

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Sources

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

  1. 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
  2. The effects of green tea extract supplementation on body composition, obesity-related hormones and oxidative stress markers: a grade-assessed systematic review and dose-response meta-analysis of randomised controlled trials.
    Asbaghi O; Rezaei Kelishadi M; Larky DA; Bagheri R; Amirani N; Goudarzi K; Kargar F; Ghanavati M; Zamani M · The British journal of nutrition · 2024
    Meta-analysis3,802 participants59 studies pooledWeight Loss forGreen Tea
  3. 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
  4. Effects of green tea on weight maintenance after body-weight loss.
    Kovacs EM; Lejeune MP; Nijs I; Westerterp-Plantenga MS · The British journal of nutrition · 2004
    Randomized trial104 participantsWeight Loss forGreen Tea
  5. Metabolic response to green tea extract during rest and moderate-intensity exercise.
    Hodgson AB; Randell RK; Boon N; Garczarek U; Mela DJ; Jeukendrup AE; Jacobs DM · The Journal of nutritional biochemistry · 2013
    Randomized trial27 participantsMetabolism Boost forGreen Tea
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. Chromium effects on glucose tolerance and insulin sensitivity in persons at risk for diabetes mellitus.
    Ali A; Ma Y; Reynolds J; Wise JP; Inzucchi SE; Katz DL · Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists · 2011
    Randomized trial59 participantsMetabolism Boost forChromium
  15. 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
  16. Chromium picolinate supplementation attenuates body weight gain and increases insulin sensitivity in subjects with type 2 diabetes.
    Martin J; Wang ZQ; Zhang XH; Wachtel D; Volaufova J; Matthews DE; Cefalu WT · Diabetes care · 2006
    Randomized trial37 participantsMetabolism Boost Weight Loss forChromium
  17. Therapeutic effect of high-dose green tea extract on weight reduction: A randomized, double-blind, placebo-controlled clinical trial.
    Chen IJ; Liu CY; Chiu JP; Hsu CH · Clinical nutrition (Edinburgh, Scotland) · 2018
    Randomized trial102 participantsWeight Loss forGreen Tea
  18. Metabolic response to epigallocatechin-3-gallate in relapsing-remitting multiple sclerosis: a randomized clinical trial.
    Mähler A; Steiniger J; Bock M; Klug L; Parreidt N; Lorenz M; Zimmermann BF; Krannich A; Paul F; Boschmann M · The American journal of clinical nutrition · 2015
    Randomized trial18 participantsMetabolism Boost forGreen Tea
  19. 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
  20. 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
  21. Effect of Acute and Chronic Dietary Supplementation with Green Tea Catechins on Resting Metabolic Rate, Energy Expenditure and Respiratory Quotient: A Systematic Review.
    Rondanelli M; Riva A; Petrangolini G; Allegrini P; Perna S; Faliva MA; Peroni G; Naso M; Nichetti M; Perdoni F; Gasparri C · Nutrients · 2021
    Systematic review499 participants15 studies pooledMetabolism Boost forGreen Tea
  22. [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
  23. Does green tea extract enhance the anti-inflammatory effects of exercise on fat loss?
    Bagheri R; Rashidlamir A; Ashtary-Larky D; Wong A; Alipour M; Motevalli MS; Chebbi A; Laher I; Zouhal H · British journal of clinical pharmacology · 2021
    Randomized trial30 participantsWeight Loss forGreen Tea
  24. 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
  25. 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
  26. Effects of dietary supplementation with epigallocatechin-3-gallate on weight loss, energy homeostasis, cardiometabolic risk factors and liver function in obese women: randomised, double-blind, placebo-controlled clinical trial.
    Mielgo-Ayuso J; Barrenechea L; Alcorta P; Larrarte E; Margareto J; Labayen I · The British journal of nutrition · 2014
    Randomized trial83 participantsWeight Loss forGreen Tea
  27. Effects of timing of acute catechin-rich green tea ingestion on postprandial glucose metabolism in healthy men.
    Takahashi M; Ozaki M; Miyashita M; Fukazawa M; Nakaoka T; Wakisaka T; Matsui Y; Hibi M; Osaki N; Shibata S · The Journal of nutritional biochemistry · 2020
    Randomized trial17 participantsMetabolism Boost forGreen Tea
  28. Chromium picolinate does not improve key features of metabolic syndrome in obese nondiabetic adults.
    Iqbal N; Cardillo S; Volger S; Bloedon LT; Anderson RA; Boston R; Szapary PO · Metabolic syndrome and related disorders · 2009
    Randomized trial63 participantsMetabolism Boost forChromium
  29. Green tea supplementation affects body weight, lipids, and lipid peroxidation in obese subjects with metabolic syndrome.
    Basu A; Sanchez K; Leyva MJ; Wu M; Betts NM; Aston CE; Lyons TJ · Journal of the American College of Nutrition · 2010
    Randomized trial35 participantsWeight Loss forGreen Tea
  30. Time-of-day-dependent effects of a green tea extract on postprandial glycemia and insulinemia in healthy adults: a randomized, controlled, double-blind, cross-over intervention.
    Sulaimani N; Rosbotham EJ; Warnock R; Polzella L; Judowski R; Nicolotti L; Houghton MJ; Williamson G; Bonham MP · Food & function · 2025
    Randomized trial14 participantsMetabolism Boost forGreen Tea
  31. Green tea and coffee intake and risk of cognitive decline in older adults: the National Institute for Longevity Sciences, Longitudinal Study of Aging.
    Shirai Y; Kuriki K; Otsuka R; Kato Y; Nishita Y; Tange C; Tomida M; Imai T; Ando F; Shimokata H · Public health nutrition · 2021
    Cohort study1,305 participantsAnti-Aging forGreen Tea
  32. Associations of green tea, coffee, and soft drink consumption with longitudinal changes in leukocyte telomere length.
    Sohn I; Shin C; Baik I · Scientific reports · 2023
    Cohort study1,952 participantsAnti-Aging forGreen Tea
  33. Can teatime increase one's lifetime?
    Nakachi K; Eguchi H; Imai K · Ageing research reviews · 2003
    Cohort studyAnti-Aging forGreen Tea
  34. Influences of tea consumption on self-rated health and life satisfaction among older adults: Evidence from the CLHLS.
    Zou M; Sun C; Yang M; Li C; Wang S; Zheng D; Wang J; Yu L; Sun L; Wang Y; Chen H; Zeng Y · PsyCh journal · 2025
    Cohort study78,345 participantsAnti-Aging forGreen Tea
  35. Double-blinded, placebo-controlled trial of green tea extracts in the clinical and histologic appearance of photoaging skin.
    Chiu AE; Chan JL; Kern DG; Kohler S; Rehmus WE; Kimball AB · Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] · 2005
    Randomized trial40 participantsAnti-Aging forGreen Tea
  36. The effects of green tea on acne vulgaris: A systematic review and meta-analysis of randomized clinical trials.
    Kim S; Park TH; Kim WI; Park S; Kim JH; Cho MK · Phytotherapy research : PTR · 2021
    Meta-analysis247 participants5 studies pooledAnti-Inflammatory Support forGreen Tea
  37. Green Tea Catechin Association with Ultraviolet Radiation-Induced Erythema: A Systematic Review and Meta-Analysis.
    Kapoor MP; Sugita M; Fukuzawa Y; Timm D; Ozeki M; Okubo T · Molecules (Basel, Switzerland) · 2021
    Meta-analysis100 participants6 studies pooledAnti-Inflammatory Support Skin Health forGreen Tea
  38. Efficacy of (-)-epigallocatechin gallate delivered by a new-type scaler tip during scaling and root planing on chronic periodontitis: a split-mouth, randomized clinical trial.
    Wang Y; Zeng J; Yuan Q; Luan Q · BMC oral health · 2021
    Randomized trial20 participantsAnti-Inflammatory Support forGreen Tea
  39. Camellia Sinensis Mouthwashes in Oral Care: a Systematic Review.
    Tafazoli A; Tafazoli Moghadam E · Journal of dentistry (Shiraz, Iran) · 2020
    Systematic review69 studies pooledAnti-Inflammatory Support forGreen Tea
  40. Skin photoprotection by green tea: antioxidant and immunomodulatory effects.
    Katiyar SK · Current drug targets. Immune, endocrine and metabolic disorders · 2004
    Narrative reviewAnti-Inflammatory Support forGreen Tea
  41. Safety and efficacy of cognitive training plus epigallocatechin-3-gallate in young adults with Down's syndrome (TESDAD): a double-blind, randomised, placebo-controlled, phase 2 trial.
    de la Torre R; de Sola S; Hernandez G; Farré M; Pujol J; Rodriguez J; Espadaler JM; Langohr K; Cuenca-Royo A; Principe A; Xicota L; Janel N; Catuara-Solarz S; Sanchez-Benavides G; Bléhaut H; Dueñas-Espín I; Del Hoyo L; Benejam B; Blanco-Hinojo L; Videla S; Fitó M; Delabar JM; Dierssen M; TESDAD study group · The Lancet. Neurology · 2017
    Randomized trial87 participantsCognitive Support forGreen Tea
  42. Association between tea consumption and risk of cognitive disorders: A dose-response meta-analysis of observational studies.
    Liu X; Du X; Han G; Gao W · Oncotarget · 2018
    Meta-analysis48,435 participants17 studies pooledCognitive Support forGreen Tea
  43. Investigating the Impact of Tea Consumption on Cognitive Function and Exploring Tea-Genetic Interactions in Older Adults Aged 65-105 Years: Findings from the 2002-2018 CLHLS Data.
    Yu L; Yang M; Ye KX; Li C; Zou M; Wang J; Yuan X; Zheng D; Sun C; Zhang Y; Feng Q; Maier AB; Sun L; Feng L; Wang Y; Chen H; Zeng Y · The journal of prevention of Alzheimer's disease · 2024
    Cohort study76,270 participantsCognitive Support forGreen Tea
  44. Consumption of green tea, but not black tea or coffee, is associated with reduced risk of cognitive decline.
    Noguchi-Shinohara M; Yuki S; Dohmoto C; Ikeda Y; Samuraki M; Iwasa K; Yokogawa M; Asai K; Komai K; Nakamura H; Yamada M · PloS one · 2014
    Cohort study490 participantsCognitive Support forGreen Tea
  45. Green Tea Consumption and the Risk of Incident Dementia in Elderly Japanese: The Ohsaki Cohort 2006 Study.
    Tomata Y; Sugiyama K; Kaiho Y; Honkura K; Watanabe T; Zhang S; Sugawara Y; Tsuji I · The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2018
    Cohort study13,645 participantsCognitive Support forGreen Tea
  46. Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task.
    Foxe JJ; Morie KP; Laud PJ; Rowson MJ; de Bruin EA; Kelly SP · Neuropharmacology · 2012
    Randomized trial27 participantsCognitive Support forTheanine
  47. Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Payne ER; Aceves-Martins M; Dubost J; Greyling A; de Roos B · Nutrition reviews · 2025
    Meta-analysis50 studies pooledCognitive Support forTheanine
  48. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.
    Hidese S; Ogawa S; Ota M; Ishida I; Yasukawa Z; Ozeki M; Kunugi H · Nutrients · 2020
    Randomized trial30 participantsCognitive Support forTheanine
  49. Dose-response effect of L-theanine on psychomotor speed, sustained attention, and inhibitory control: a double-blind, placebo-controlled, crossover study.
    Dassanayake TL; Wijesundara D; Kahathuduwa CN; Weerasinghe VS · Nutritional neuroscience · 2023
    Randomized trial32 participantsCognitive Support forTheanine
  50. Acute effects of theanine, caffeine and theanine-caffeine combination on attention.
    Kahathuduwa CN; Dassanayake TL; Amarakoon AMT; Weerasinghe VS · Nutritional neuroscience · 2018
    Clinical trial20 participantsCognitive Support forTheanine
  51. 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
  52. 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
  53. 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
  54. 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
  55. Topical Polyphenon E in the treatment of external genital and perianal warts: a randomized controlled trial.
    Stockfleth E; Beti H; Orasan R; Grigorian F; Mescheder A; Tawfik H; Thielert C · The British journal of dermatology · 2008
    Randomized trial503 participantsSkin Health forGreen Tea
  56. Efficacy, safety and tolerability of green tea catechins in the treatment of external anogenital warts: a systematic review and meta-analysis.
    Tzellos TG; Sardeli C; Lallas A; Papazisis G; Chourdakis M; Kouvelas D · Journal of the European Academy of Dermatology and Venereology : JEADV · 2011
    Meta-analysis1,247 participants3 studies pooledSkin Health forGreen Tea
  57. Green tea polyphenols provide photoprotection, increase microcirculation, and modulate skin properties of women.
    Heinrich U; Moore CE; De Spirt S; Tronnier H; Stahl W · The Journal of nutrition · 2011
    Randomized trial60 participantsSkin Health forGreen Tea
  58. Efficacy of Epigallocatechin-3-Gallate in Preventing Dermatitis in Patients With Breast Cancer Receiving Postoperative Radiotherapy: A Double-Blind, Placebo-Controlled, Phase 2 Randomized Clinical Trial.
    Zhao H; Zhu W; Zhao X; Li X; Zhou Z; Zheng M; Meng X; Kong L; Zhang S; He D; Xing L; Yu J · JAMA dermatology · 2022
    Randomized trial180 participantsSkin Health forGreen Tea
  59. 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
  60. Chromium picolinate reduces insulin resistance in polycystic ovary syndrome: Randomized controlled trial.
    Ashoush S; Abou-Gamrah A; Bayoumy H; Othman N · The journal of obstetrics and gynaecology research · 2017
    Randomized trial100 participantsWeight Loss forChromium
  61. Chromium supplementation and polycystic ovary syndrome: A systematic review and meta-analysis.
    Fazelian S; Rouhani MH; Bank SS; Amani R · Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2018
    Meta-analysis351 participants7 studies pooledWeight Loss forChromium
  62. 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
  63. 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