Extra-Energy Thermo-Fuel Max Fat Burner

Extra-Energy Thermo-Fuel Max Fat Burner

Irwin Naturals4.3 (149 ratings)
Format:Softgel Quantity: 100 Softgel(s) · 33 servings
Goals

Product analysis

38 out of 100

Extra-Energy Thermo-Fuel Max Fat Burner offers caffeine-related support for short-term alertness. Missing quantities and unclear ingredient preparations make the full formula difficult to compare.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality20

Most ingredient forms are not disclosed, including the individual omega-3 preparations. The quality of the combined nutrient and plant preparations cannot be established confidently.

Ingredient Transparency52

Several quantities and nearly all individual preparations are omitted. The named ingredient forms do not resolve the amounts of every component.

Value For Money31

The full serving cost is less favorable when judged for EPA or DHA alone. Value for most other ingredients remains uncertain.

Customer Satisfaction65

Customer ratings are positive. A moderately sized review pool gives a useful view of buyer satisfaction.

Product Focus35

Caffeine provides the clearest connection to short-term alertness and attention. The unknown guarana contribution leaves total stimulant exposure unclear, and wider fat-burning or healthy-aging benefits remain uncertain.

Format
Softgel
Container
100 Softgel(s)
Per serving
$0.63
Customer rating
4.3 · 149 ratings
Report analysis

Goals

Energy
Impact
Moderate effect
D- Ingredient FitD- PathwaysA+ EvidenceA Formulation Logic
Vitamin B5 · 18 mgRiboflavin · 0.5 mgThiamin · 0.4 mgVitamin B12 · 1.5 mcgFish Oil · 1050 mgCaffeine · 75 mg
Study evidence
Caffeine Supportive 68 studies
Eleuthero Disputed 3 studies
Fish Oil Disputed 8 studies
Guarana No effect 8 studies
Thiamin Disputed 12 studies
Mental Focus
Impact
Moderate effect
D- Ingredient FitD+ PathwaysB- EvidenceA+ Formulation Logic
Vitamin B12 · 1.5 mcgCaffeine · 75 mg
Study evidence
Caffeine Supportive 128 studies
Eleuthero Disputed 3 studies
Inflammation
Impact
Limited evidence
F Ingredient FitF PathwaysF EvidenceB Formulation Logic
Fish Oil · 1050 mgVitamin E · 3.4 mgVitamin C · 8 mgGreen Tea · 300 mg
Study evidence
Fish Oil Supportive 68 studies
Ginger Supportive 30 studies
Selenium Supportive 34 studies
Vitamin C Supportive 50 studies
Vitamin E Supportive 20 studies
Skin Health
Impact
Moderate effect
F Ingredient FitD- PathwaysA- EvidenceA+ Formulation Logic
Vitamin C · 8 mgSelenium · 17 mcgGreen Tea · 300 mgVitamin E · 3.4 mg
Study evidence
Green Tea Supportive 37 studies
Niacin Supportive 61 studies
Selenium Supportive 22 studies
Vitamin C Supportive 53 studies
Vitamin E Supportive 38 studies
Cognitive Support
Impact
High effect
D Ingredient FitC+ PathwaysA- EvidenceA Formulation Logic
Thiamin · 0.4 mgVitamin B12 · 1.5 mcgEPA (Eicosapentaenoic Acid) · 189 mgGreen Tea · 300 mg
Study evidence
Green Tea Supportive 32 studies
Guarana Supportive 11 studies
Thiamin Supportive 30 studies
Longevity
Impact
Moderate effect
F Ingredient FitD+ PathwaysB+ EvidenceA- Formulation Logic
Vitamin B12 · 1.5 mcgGreen Tea · 300 mg
Study evidence
Green Tea Supportive 9 studies
Omega-3 Supportive 56 studies
Selenium Supportive 27 studies
Vitamin C Supportive 30 studies
Vitamin E Supportive 19 studies

Ingredients

IngredientAmount per servingScore
Calories
20 Calorie(s)
Total Fat
1.5 Gram(s)
Cholesterol
5 mg
Total Carbohydrates
1 Gram(s)
Protein
1 Gram(s)
Vitamin C (Ascorbic Acid)
8 mg
Vitamin E (D-Alpha-Tocopherol)
3.4 mg
Thiamine (Thiamine Hydrochloride)
0.4 mg
Riboflavin
0.5 mg
Niacin (Niacinamide)
7 mg
Vitamin B12 (Cyanocobalamin)
1.5 mcg
Pantothenic Acid (D-Calcium Pantothenate)
18 mg
Calcium
30 mg
Selenium (Selenium Aspartate)
17 mcg
Chromium (Chromium Picolinate)
100 mcg 47
Fish Oil (Anchovy, Sardine)
1050 mg 29
Eicosapentaenoic Acid
189 mg 38
Docosahexaenoic Acid
126 mg 32
Green Tea Leaf Extract
300 mg 61
Epigallocatechin Gallate
150 mg
Extra Energy Complex
185 mg
Caffeine (Green Coffee)
75 mg 65
Eleuthero Root Extract (Eleutherosides)
0 NP
Cayenne fruit extract
0 NP
Guarana seed extract
0 NP
Mate (Yerba Mate) extract
0 NP
Garcinia Fruit, Rind Extract (Garcinia cambogia Fruit Extract, Garcinia cambogia Rind Extract)
150 mg
Hydroxycitric Acid
75 mg
L-Carnitine (L-Carnitine Fumarate)
35 mg
L-Tyrosine
35 mg
Asian Ginseng root extract
30 mg
Spirulina, Powder
20 mg
BioPerine Complex
3 mg
BioPerine (Black Pepper Fruit Extract)
0 NP
Ginger Rhizome Extract (Gingerols)
0 NP
Adults 18–50 Women
Report overview
Green Tea · 300 mg OverallScore61
A+ Composition And Label DisclosureD- Composition And Label DisclosureF Commercial Price And Usability
The 300 mg of green tea leaf extract has 50% EGCG. The cost per 200 mg of declared EGCG is high. A 75 mg caffeine amount is stated, but the whole-product total is unclear.
How this ingredient is rated

Composition and Label Disclosure100

The 300 mg of green tea leaf extract has 50% EGCG.
Declared Green Tea Marker Concentration
The 300 mg of green tea leaf extract has 50% EGCG.

Composition and Label Disclosure40

A 75 mg caffeine amount is stated, but the whole-product total is unclear.
Whole-Product Caffeine Disclosure
A 75 mg caffeine amount is stated, but the whole-product total is unclear.

Commercial Price and Usability25

The cost per 200 mg of declared EGCG is high.
Cost per 200 mg Declared EGCG
The cost per 200 mg of declared EGCG is high.
B- Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyF Value
A serving provides 100 mcg chromium, a moderate amount, with a high cost per 200 mcg. It uses Chromium Picolinate. The chromium amount is stated, but the source compound weight is not separately given.
How this ingredient is rated

Active Ingredient Quality & Bioavailability70

It uses Chromium Picolinate. No branded chromium source is specified.
Chromium Chemical Form
It uses Chromium Picolinate.
Branded & Trademarked Sources
No branded chromium source is specified.

Dose, Safety & Label Transparency43

The serving supplies 100 mcg chromium. The chromium amount is stated, but the source compound weight is not separately given.
Elemental Chromium Dosage
The serving provides 100 mcg chromium, a moderate amount.
Label Transparency & Disclosure
The chromium amount is stated, but the source compound weight is not separately given.

Value10

The cost per 200 mcg of chromium is high.
Price per 200 mcg Chromium
The cost per 200 mcg of chromium is high.
D- Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyF Value
Each serving provides 189 mg of EPA at a high cost per gram of EPA. The EPA molecular form is not specified in the available information. No oil purification or specific contaminant testing claim is apparent in the available information.
How this ingredient is rated

Active Ingredient Quality & Bioavailability41

The EPA molecular form is not specified in the available information. EPA makes up about 18% of the fish oil.
Molecular Form and Bioavailability
The EPA molecular form is not specified in the available information.
EPA Concentration Density
EPA makes up about 18% of the fish oil.
Oxidation Protection
Tocopherol is included, though actual protection from oxidation is not established.

Dose, Safety & Label Transparency45

Each serving provides 189 mg of EPA and 126 mg of DHA. No oil purification or specific contaminant testing claim is apparent in the available information.
Absolute EPA Dose per Serving
Each serving provides 189 mg of EPA.
EPA-Centric Ratio
The serving contains 126 mg of DHA, less than the EPA amount.
Purity and Contaminant Testing
No oil purification or specific contaminant testing claim is apparent in the available information.

Value20

The cost per gram of EPA is high.
Price per Gram of EPA
The cost per gram of EPA is high.
Report alternatives

Sources

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

  1. No benefit adding eleutherococcus senticosus to stress management training in stress-related fatigue/weakness, impaired work or concentration, a randomized controlled study.
    Schaffler K; Wolf OT; Burkart M · Pharmacopsychiatry · 2014
    Randomized trial144 participantsCognitive Support Mental Focus forEleuthero
  2. Blood polyunsaturated omega-3 fatty acids, brain atrophy, cognitive decline, and dementia risk.
    Thomas A; Baillet M; Proust-Lima C; Féart C; Foubert-Samier A; Helmer C; Catheline G; Samieri C · Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Cohort study1,279 participantsCognitive Support forEPA (Eicosapentaenoic Acid)
  3. Thirteen-year prospective study between fish consumption, long-chain n-3 fatty acids intakes and cognitive function.
    Kesse-Guyot E; Péneau S; Ferry M; Jeandel C; Hercberg S; Galan P; SU.VI.MAX 2 Research Group · The journal of nutrition, health & aging · 2011
    Cohort study3,294 participantsCognitive Support forEPA (Eicosapentaenoic Acid)
  4. Serum ω-3 Fatty Acids and Cognitive Domains in Community-Dwelling Older Adults from the NuAge Study: Exploring the Associations with Other Fatty Acids and Sex.
    Duchaine CS; Fiocco AJ; Carmichael PH; Cunnane SC; Plourde M; Lampuré A; Allès B; Belleville S; Gaudreau P; Presse N; Ferland G; Laurin D · The Journal of nutrition · 2022
    Cross-sectional study386 participantsCognitive Support forEPA (Eicosapentaenoic Acid)
  5. Breast milk EPA associated with infant distractibility when EPA level is low.
    Jia K; Feng Y; Brenna JT; Luo ZC; Zhao J; Li H; Li P; Zhang Q; Zhao Q; Dai Q; Zhong Y; Lambers T; Zhang H; Zhou H; Gao Y · Nutrition (Burbank, Los Angeles County, Calif.) · 2021
    Cohort study120 participantsCognitive Support forEPA (Eicosapentaenoic Acid)
  6. Association of Red Blood Cell Omega-3 Fatty Acids With MRI Markers and Cognitive Function in Midlife: The Framingham Heart Study.
    Satizabal CL; Himali JJ; Beiser AS; Ramachandran V; Melo van Lent D; Himali D; Aparicio HJ; Maillard P; DeCarli CS; Harris WS; Seshadri S · Neurology · 2023
    Cross-sectional study2,183 participantsCognitive Support forEPA (Eicosapentaenoic Acid)
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. Cognitive effects of guarana supplementation with maximal intensity cycling.
    Gurney T; Bradley N; Izquierdo D; Ronca F · The British journal of nutrition · 2023
    Randomized trial25 participantsCognitive Support forGuarana
  13. Cognitive Performance Enhancement Induced by Caffeine, Carbohydrate and Guarana Mouth Rinsing during Submaximal Exercise.
    Pomportes L; Brisswalter J; Casini L; Hays A; Davranche K · Nutrients · 2018
    Randomized trial24 participantsCognitive Support forGuarana
  14. Improved cognitive performance in human volunteers following administration of guarana (Paullinia cupana) extract: comparison and interaction with Panax ginseng.
    Kennedy DO; Haskell CF; Wesnes KA; Scholey AB · Pharmacology, biochemistry, and behavior · 2005
    Non-randomized trial28 participantsCognitive Support forGuarana
  15. The effect of plant active substances on cognitive function in healthy older adults: a systematic review and network meta-analysis of randomized controlled trials.
    Feng X; Fan S; Wei F · Frontiers in pharmacology · 2026
    Meta-analysis1,861 participants25 studies pooledCognitive Support forGuarana
  16. Effect of Guarana (Paullinia cupana) on Cognitive Performance: A Systematic Review and Meta-Analysis.
    Hack B; Penna EM; Talik T; Chandrashekhar R; Millard-Stafford M · Nutrients · 2023
    Meta-analysis328 participants8 studies pooledCognitive Support forGuarana
  17. Thiamine supplementation holds neurocognitive benefits for breastfed infants during the first year of life.
    Measelle JR; Baldwin DA; Gallant J; Chan K; Green TJ; Wieringa FT; Borath M; Prak S; Hampel D; Shahab-Ferdows S; Allen LH; Kroeun H; Whitfield KC · Annals of the New York Academy of Sciences · 2021
    Randomized trial335 participantsCognitive Support forThiamin
  18. What is the impact of thiamine deficiency on cognitive function in patients with alcohol use disorder? - A systematic review.
    Teixeira J; Pereira I; Castanho M; Simões do Couto F · European journal of internal medicine · 2025
    Systematic reviewCognitive Support forThiamin
  19. Association between dietary vitamin B1 intake and cognitive function among older adults: a cross-sectional study.
    Jia W; Wang H; Li C; Shi J; Yong F; Jia H · Journal of translational medicine · 2024
    Cross-sectional study2,422 participantsCognitive Support forThiamin
  20. Association of vitamin B1 intake with geriatric cognitive function: An analysis of the National Health and Nutrition Examination Survey (NHANES) from 2011 to 2014.
    Ji K; Sun M; Hong Y; Li L; Wang X; Li C; Yang S; Du W; Xu K; Zhou H · Heliyon · 2024
    Cross-sectional study2,896 participantsCognitive Support forThiamin