Product Image

Green Tea Fat Metabolizer

Irwin Naturals
4.3
★ ★ ★ ★ ★
(442 ratings)
Green Tea 400 mg
Chromium 125 mcg
Omega-3 255 mg
Fish Oil 851 mg
Product Image
Score70
A clearly dosed green tea and caffeine formula with useful EGCG for alertness and thermogenic support. Weak fish-oil disclosure and token ginger keep the secondary ingredients modest.
How scoring works
Quantity:150 Liquid(s) • (75 servings)
Goals:
Metabolism Boost
Weight Loss
Energy
Mental Focus
Anti-Aging
Skin Health
Anti-Inflammatory Support
Productivity Boost

Score 70

A clearly dosed green tea and caffeine formula with useful EGCG for alertness and thermogenic support. Weak fish-oil disclosure and token ginger keep the secondary ingredients modest.
How scoring works

Also available as

1 option
75 servings Green Tea 400 mg, Fish Oil 851 mg +2 more • 75 Softgel(s) • 37 servings $24.99 ($0.67 per serving)
$44.99($0.59 per serving)
iHerb
$ 44.99
Vitacost
$ 44.99
Report prices

Analysis

A 400 mg green tea extract provides 200 mg EGCG and 100 mg caffeine, creating a clear thermogenic and alertness pathway. Chromium and BioPerine add smaller metabolic and absorption-related contributions.

The fish oil supplies only total omega-3 without separate EPA or DHA amounts, and its molecular form and stability details are absent. Ginger is present at only 6 mg and contributes little targeted value.

The liquid softgels fit adults seeking moderate caffeine and green tea support for short-term energy or weight-management routines. They are not a complete metabolic plan, and late-day use may work against sleep.

Who is it for
  • Adults who tolerate moderate caffeine
  • Users seeking green tea EGCG
  • People wanting stimulant-based metabolism support
Best for
  • Short-term alertness
  • Green tea and EGCG intake
  • Caffeine-supported weight-management routines

Pros

  • Provides 200 mg EGCG
  • Discloses 100 mg caffeine
  • Includes BioPerine and chromium

Cons

  • EPA and DHA are not disclosed
  • Ginger is only a token dose
  • Support relies heavily on stimulant effects

Warnings

  • The caffeine may cause jitters, faster heartbeat, anxiety, or sleep disruption in sensitive users.
  • Concentrated green tea extract is better taken as directed rather than on an empty stomach.
  • Fish oil makes the product unsuitable for people with fish allergy.

Nutrient quality

76 High impact

Green tea extract, EGCG, caffeine, and fish oil have meaningful amounts, while ginger is lightly dosed. Caffeine at 100 mg is moderate, but concentrated green tea may cause intolerance and deserves caution when fasting.

Ingredient transparency

66 High impact

Main actives have amounts, but several blank ingredient names and null form entries reduce clarity. No major proprietary blend hides the green tea, caffeine, fish-oil, or chromium doses.

Customer satisfaction

64 Moderate impact

The favorable rating is supported by a moderate review base. No review text is available to assess recurring complaints or firsthand results.

Value for money

73 High impact

Meaningful green tea and fish-oil doses support fair quality for the cost. The long bottle life provides good serving value.

Report analysis

Goals

Metabolism Boost
Metabolism Boost
Impact
Highest effect
A Goal FitA- Strength of SupportB+ CoverageA- Formula Quality
Omega-3 · 255 mgGreen Tea · 400 mgCaffeine · 100 mg

Standardized green tea with EGCG and caffeine directly supports thermogenesis and fat oxidation, while chromium adds glucose-metabolism support. The combination has a clearer metabolism focus than a general multivitamin.

Green tea, EGCG, caffeine, and chromium amounts are disclosed and reach practical levels. The 100 mg caffeine amount may disturb sleep or cause palpitations in sensitive users.

Study evidence
Caffeine Disputed 40 studies
Chromium Supportive 47 studies
Green Tea Supportive 31 studies
Weight Loss
Weight Loss
Impact
Highest effect
B+ Goal FitB+ Strength of SupportB+ CoverageA Formula Quality
Green Tea · 400 mgCaffeine · 100 mg

Green tea extract and caffeine directly support thermogenesis and appetite-related alertness. Caffeine has human evidence for modest short-term energy expenditure, while durable weight loss still depends on diet.

The caffeine amount is meaningful, but the formula cannot establish large or lasting fat loss. Caffeine may cause jitters or sleep disruption in sensitive users.

Study evidence
Caffeine Disputed 14 studies
Green Tea Supportive 42 studies
Energy
Energy
Impact
Highest effect
A- Goal FitB Strength of SupportC+ CoverageA- Formula Quality
Fish Oil · 851 mgCaffeine · 100 mg

Green tea extract with 100 mg caffeine provides moderate acute alertness and thermogenic support. The caffeine amount is practical, but no theanine, B-vitamin depth, or mitochondrial active broadens the effect.

The extract and caffeine amounts are disclosed, although catechin standardization is not shown. Caffeine may disturb sleep or cause jitters in sensitive users.

Study evidence
Caffeine Supportive 68 studies
Mental Focus
Mental Focus
Impact
High effect
B+ Goal FitB Strength of SupportC+ CoverageB Formula Quality
Caffeine · 100 mg

The moderate caffeine amount should provide predictable short-term alertness, while green-tea EGCG adds a related stimulant and antioxidant context. The formula is more directly aligned with focus than its fat-metabolism name suggests.

It relies mainly on one acute stimulant pathway and does not include theanine, tyrosine, or an adaptogen to broaden or smooth the effect. Caffeine may cause jitters or sleep disruption in sensitive users, especially when combined with other caffeine sources.

Study evidence
Caffeine Supportive 128 studies
Anti-Aging
Anti-Aging
Impact
High effect
C+ Goal FitB- Strength of SupportC+ CoverageB- Formula Quality
Omega-3 · 255 mgGreen Tea · 400 mg

Green tea supplies a meaningful EGCG amount for antioxidant and metabolic signaling, while fish-derived omega-3 fats add modest inflammation support. The formula is designed for fat metabolism and uses caffeine, so it is not a restorative or comprehensive longevity strategy.

EGCG and caffeine amounts are disclosed, but EPA and DHA are not separated and the omega-3 amount is low. Caffeine may cause anxiety, rapid heartbeat, or sleep disruption, and concentrated green tea extracts are best taken as directed rather than on an empty stomach.

Study evidence
Green Tea Supportive 9 studies
Omega-3 Supportive 56 studies
Skin Health
Skin Health
Impact
High effect
B- Goal FitB- Strength of SupportC+ CoverageC- Formula Quality
Green Tea · 400 mgOmega-3 · 255 mg

Green tea polyphenols and a smaller omega-3 contribution target oxidative stress, inflammation, and barrier support. Green tea extract supplies 200 mg EGCG, but omega-3 fatty acids are limited to 255 mg.

The formula covers photoprotective antioxidant activity and some lipid-barrier support. Green tea has useful depth, while the omega-3 pathway and structural support remain limited.

Study evidence
Green Tea Supportive 37 studies
Omega-3 Supportive 35 studies

Ingredients

IngredientAmount per serving
Calories
15 Calorie(s)
Total Fat
1 Gram(s)
Cholesterol
5 mg
Total Carbohydrates
1 Gram(s)
Protein
1 Gram(s)
Chromium
125 mcg
Fish Oil
851 mg
Omega-3 Fatty Acids
255 mg
Green Tea leaf extract
400 mg
EGCG
200 mg
Caffeine
100 mg
BioPerine Complex
6 mg
BioPerine
0 NP
Ginger Rhizome Extract
6 mg
Adults 18–50 Women
Report overview
Green Tea · 400 mg OverallScore84
A- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD+ Value

A 400 mg extract provides 200 mg EGCG, meeting the preferred daily amount. BioPerine may support absorption, while exact caffeine disclosure helps stimulant planning. The disclosed EGCG dose offers moderate rather than leading cost efficiency.

View ingredientView products
Chromium · 125 mcg OverallScore30
F Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyF Value

The chemical form of chromium is not identified. The 125 mcg amount is below the targeted range, and the label lists only one chromium weight. Cost efficiency is weak for chromium despite the formula’s broader nutrient content.

View ingredientView products
Omega-3 · 255 mg OverallScore24
F Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyF Value

The generic fish oil has no specified molecular form or antioxidant protection. Only total omega-3 is disclosed, with no separate EPA and DHA amounts and a low active share of the oil. High normalized cost and absent independent purity information make it poorly suited to a concentrated omega-3 goal.

View ingredientView products
Loading alternative details
74 Performance

Omega Blood Sugar

Nordic Naturals
Chelated chromium, 300 mg alpha-lipoic acid, and 896 mg total omega-3 fats create a more focused metabolic formula without caffeine. These ingredients may compound glucose-lowering medicines, and no green-tea component is included.
70 Performance

Fish Oil 1000 mg

Spring Valley
Triglyceride-form fish oil provides a clearly stated 260 mg of combined EPA and DHA with simpler stimulant-free use. Its omega dose is modest and it does not replace the original EGCG, caffeine, or chromium.
71 Performance

Fish Oil 1200 mg

Nature's Bounty
Named small-fish sources and 360 mg of total omega-3 fats provide a simple, inexpensive alternative without concentrated green tea or caffeine. Separate EPA and DHA amounts and oxidation protection are missing, and metabolic goal coverage is much narrower.
65 Budget

Fish Oil 1200 mg

Nature's Bounty
The large supply lowers recurring cost while providing 360 mg of total omega-3 fats. It removes green tea, caffeine, and chromium, so it is a simpler fish-oil alternative rather than a metabolism-focused substitute.
65 Budget

Fish Oil 1200 mg

21st Century
A low serving cost makes 360 mg of total omega-3 fats inexpensive for regular use. Individual EPA and DHA amounts are missing, and the product does not provide the original green-tea or chromium components.
65 Budget

Fish Oil 1000 mg

Sundown
A long package supply provides basic omega-3 intake at far lower recurring cost. The 300 mg omega amount is modest and lacks separate EPA and DHA values, while metabolism-oriented ingredients are absent.
63 Value

Mini Fish Oil 1290 mg

Nature's Bounty
The compact fish-oil option supplies 900 mg of total omega-3 fats at a lower serving cost, giving more fatty-acid material for the money. EPA and DHA are not separated, and it does not cover the original stimulant-based metabolism goal.
65 Value

Fish Oil 1000 mg

21st Century
A low recurring cost and long supply make the 300 mg total omega-3 amount economical for basic use. Missing individual fatty-acid values and the absence of green tea or chromium limit its relevance to the original purpose.
63 Value

Wild Alaskan Salmon Oil 2000 mg

AN Amazing Nutrition Amazing Omega
The high fish-oil amount and lower serving cost favor simple omega-fat intake over the original crowded blend. Active omega-3 amounts are not fully characterized, and no green tea, caffeine, or chromium is supplied.
Report alternatives

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 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. Effect of omega-3 fatty acids on the telomere length: A mini meta-analysis of clinical trials.
    Ali S; Scapagnini G; Davinelli S · Biomolecular concepts · 2022
    Meta-analysis337 participants5 studies pooledAnti-Aging forOmega-3
  37. Omega-3 supplementation and stress reactivity of cellular aging biomarkers: an ancillary substudy of a randomized, controlled trial in midlife adults.
    Madison AA; Belury MA; Andridge R; Renna ME; Rosie Shrout M; Malarkey WB; Lin J; Epel ES; Kiecolt-Glaser JK · Molecular psychiatry · 2022
    Randomized trial138 participantsAnti-Aging forOmega-3
  38. Omega-3 Polyunsaturated Fatty Acids and Cognitive Decline in Adults with Non-Dementia or Mild Cognitive Impairment: An Overview of Systematic Reviews.
    Barros MI; Brandão T; Irving SC; Alves P; Gomes F; Correia M · Nutrients · 2025
    Meta-analysis26,881 participants9 studies pooledAnti-Aging forOmega-3
  39. Association of marine omega-3 fatty acid levels with telomeric aging in patients with coronary heart disease.
    Farzaneh-Far R; Lin J; Epel ES; Harris WS; Blackburn EH; Whooley MA · JAMA · 2010
    Cohort study608 participantsAnti-Aging forOmega-3
  40. Long-chain omega-3 fatty acids improve brain function and structure in older adults.
    Witte AV; Kerti L; Hermannstädter HM; Fiebach JB; Schreiber SJ; Schuchardt JP; Hahn A; Flöel A · Cerebral cortex (New York, N.Y. : 1991) · 2015
    Randomized trial65 participantsAnti-Aging forOmega-3
  41. Dose-dependent effects of fish oil on cardio-metabolic biomarkers in healthy middle-aged and elderly Chinese people: a double-blind randomized controlled trial.
    Song J; Hu M; Li C; Yang B; Ding Q; Wang C; Mao L · Food & function · 2018
    Randomized trial201 participantsAnti-Inflammatory Support forFish Oil
  42. Eicosapentaenoic acid supplementation alleviates pruritus, enhances skin moisture, and mitigates depression in maintenance hemodialysis patients.
    Lin YL; Wang CL; Chiang TI · Frontiers in nephrology · 2024
    Randomized trial60 participantsAnti-Inflammatory Support forFish Oil
  43. Lowering effects of fish oil supplementation on proinflammatory markers in hypertension: results from a randomized controlled trial.
    Yang B; Ren XL; Li ZH; Shi MQ; Ding F; Su KP; Guo XJ; Li D · Food & function · 2020
    Randomized trial77 participantsAnti-Inflammatory Support forFish Oil
  44. The effects of ω-3 fish oil emulsion-based parenteral nutrition plus combination treatment for acute paraquat poisoning.
    Meng Z; Dong Y; Gao H; Yao D; Gong Y; Meng Q; Zheng T; Cui X; Su X; Tian Y · The Journal of international medical research · 2019
    Randomized trial174 participantsAnti-Inflammatory Support forFish Oil
  45. Effects of Omega-3 Fatty Acid Intake in Patients Undergoing Dialysis: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Liu R; Jiang J; Fu Z; Liu C; Yao L; Quan H · Journal of the American Nutrition Association · 2022
    Meta-analysis49 studies pooledAnti-Inflammatory Support forFish Oil
  46. The effect of ginger supplementation on serum C-reactive protein, lipid profile and glycaemia: a systematic review and meta-analysis.
    Mazidi M; Gao HK; Rezaie P; Ferns GA · Food & nutrition research · 2022
    Meta-analysis9 studies pooledAnti-Inflammatory Support forGinger
  47. Ginger supplementation and metabolic health: an umbrella review of meta-analyses of randomized trials.
    Musazadeh V; Morvaridi M; Hosseini-Roknabadi SM; Mahmoudinezhad M; Jafari A; Shidfar F · Diabetology & metabolic syndrome · 2026
    Meta-analysis43,570 participants36 studies pooledAnti-Inflammatory Support forGinger
  48. Effect of Ginger Supplementation on Proinflammatory Cytokines in Older Patients with Osteoarthritis: Outcomes of a Randomized Controlled Clinical Trial.
    Mozaffari-Khosravi H; Naderi Z; Dehghan A; Nadjarzadeh A; Fallah Huseini H · Journal of nutrition in gerontology and geriatrics · 2017
    Randomized trial120 participantsAnti-Inflammatory Support forGinger
  49. Effects of Ginger Supplementation on Markers of Inflammation and Functional Capacity in Individuals with Mild to Moderate Joint Pain.
    Broeckel J; Estes L; Leonard M; Dickerson BL; Gonzalez DE; Purpura M; Jäger R; Sowinski RJ; Rasmussen CJ; Kreider RB · Nutrients · 2025
    Randomized trial30 participantsAnti-Inflammatory Support forGinger
  50. The effect of ginger supplementation on some immunity and inflammation intermediate genes expression in patients with active Rheumatoid Arthritis.
    Aryaeian N; Shahram F; Mahmoudi M; Tavakoli H; Yousefi B; Arablou T; Jafari Karegar S · Gene · 2019
    Randomized trial70 participantsAnti-Inflammatory Support forGinger
  51. 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
  52. 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
  53. 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
  54. 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
  55. 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
  56. 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
  57. 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
  58. 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
  59. 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
  60. 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
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    Haskell CF; Kennedy DO; Wesnes KA; Scholey AB · Psychopharmacology · 2005
    Randomized trial48 participantsEnergy forCaffeine
  62. 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
  63. 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
  64. 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
  65. 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
  66. 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
  67. 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
  68. 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
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  69. 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
  70. 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
  71. Fish oil-derived n-3 PUFA therapy increases muscle mass and function in healthy older adults.
    Smith GI; Julliand S; Reeds DN; Sinacore DR; Klein S; Mittendorfer B · The American journal of clinical nutrition · 2015
    Randomized trial60 participantsFitness forOmega-3
  72. Fish-oil supplementation enhances the effects of strength training in elderly women.
    Rodacki CL; Rodacki AL; Pereira G; Naliwaiko K; Coelho I; Pequito D; Fernandes LC · The American journal of clinical nutrition · 2012
    Randomized trial45 participantsFitness forOmega-3
  73. Effects of fish oil-derived n-3 polyunsaturated fatty acid on body composition, muscle strength and physical performance in older people: a secondary analysis of a randomised, double-blind, placebo-controlled trial.
    Xu D; Lu Y; Yang X; Pan D; Wang Y; Yin S; Wang S; Sun G · Age and ageing · 2022
    Randomized trial200 participantsFitness forOmega-3
  74. Effects of Omega-3 Fatty Acids on Muscle Mass, Muscle Strength and Muscle Performance among the Elderly: A Meta-Analysis.
    Huang YH; Chiu WC; Hsu YP; Lo YL; Wang YH · Nutrients · 2021
    Meta-analysis10 studies pooledFitness forOmega-3
  75. Efficacy of Boswellia serrata Extract and/or an Omega-3-Based Product for Improving Pain and Function in People Older Than 40 Years with Persistent Knee Pain: A Randomized Double-Blind Controlled Clinical Trial.
    Pérez-Piñero S; Muñoz-Carrillo JC; Victoria-Montesinos D; García-Muñoz AM; Andreu-Caravaca L; Gómez M; Schölzel M; García-Guillén AI; López-Román FJ · Nutrients · 2023
    Randomized trial120 participantsFitness forOmega-3
  76. 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
  77. 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
  78. 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
  79. Effects of caffeine on mood and performance: a study of realistic consumption.
    Brice CF; Smith AP · Psychopharmacology · 2003
    Clinical trial24 participantsMental Focus forCaffeine
  80. 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
  81. 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
  82. 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
  83. 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
  84. 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
  85. 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
  86. 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
  87. 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
  88. 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
  89. 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
  90. Effects of caffeine on alertness.
    Zwyghuizen-Doorenbos A; Roehrs TA; Lipschutz L; Timms V; Roth T · Psychopharmacology · 1990
    Randomized trial24 participantsProductivity Boost forCaffeine
  91. 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
  92. 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
  93. 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
  94. 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
  95. 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
  96. 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
  97. 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
  98. 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
  99. Dietetic intervention in psoriatic arthritis: the DIETA trial.
    Leite BF; Morimoto MA; Gomes CMF; Klemz BNC; Genaro PS; Shivappa N; Hébert JR; Damasceno NRT; Pinheiro MM · Advances in rheumatology (London, England) · 2022
    Randomized trial97 participantsSkin Health forOmega-3
  100. Omega-3 fatty acid supplement skin cancer prophylaxis in lung transplant recipients: A randomized, controlled pilot trial.
    Miura K; Vail A; Chambers D; Hopkins PM; Ferguson L; Grant M; Rhodes LE; Green AC · The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation · 2019
    Randomized trial49 participantsSkin Health forOmega-3
  101. Clinical and metabolic response to flaxseed oil omega-3 fatty acids supplementation in patients with diabetic foot ulcer: A randomized, double-blind, placebo-controlled trial.
    Soleimani Z; Hashemdokht F; Bahmani F; Taghizadeh M; Memarzadeh MR; Asemi Z · Journal of diabetes and its complications · 2018
    Randomized trial60 participantsSkin Health forOmega-3
  102. Treatment of hard-to-heal wounds in ischaemic lower extremities with a novel fish skin-derived matrix.
    Lee YJ; Han HJ; Shim HS · Journal of wound care · 2024
    Randomized trial50 participantsSkin Health forOmega-3
  103. Effect of eicosapentaenoic acid, an omega-3 polyunsaturated fatty acid, on UVR-related cancer risk in humans. An assessment of early genotoxic markers.
    Rhodes LE; Shahbakhti H; Azurdia RM; Moison RM; Steenwinkel MJ; Homburg MI; Dean MP; McArdle F; Beijersbergen van Henegouwen GM; Epe B; Vink AA · Carcinogenesis · 2003
    Randomized trial42 participantsSkin Health forOmega-3
  104. 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
  105. 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
  106. 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
  107. 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
  108. 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
  109. 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