Product Image

Amino: Cuts Amino-Charged Energy Drink Grape

ALLMAX
4.3
★ ★ ★ ★ ★
(586 ratings)
Alanine 500 mg
Caffeine 127 mg
Taurine 2000 mg
L-Carnitine 500 mg
Lysine 300 mg
Glutamine 250 mg
Glycine 345 mg
Product Image
Score65
A moderate energy drink mix with useful taurine and manageable listed caffeine. The broad amino label is much less impressive because most amounts are small.
How scoring works
Quantity:210 Gram(s) • (30 servings)
Goals:
Energy
Mental Focus
Metabolism Boost
Productivity Boost
Fitness
General Health

Score 65

A moderate energy drink mix with useful taurine and manageable listed caffeine. The broad amino label is much less impressive because most amounts are small.
How scoring works

Also available as

6 options
Orange 7 Gram(s) • 210 Gram(s) • 30 servings $15.60 ($0.52 per serving) Blue Raspberry 7 Gram(s) • 210 Gram(s) • 30 servings $17.96 ($0.59 per serving) Goji Berry 7 Gram(s) • 210 Gram(s) • 30 servings $17.96 ($0.59 per serving) Pina Colada 7 Gram(s) • 210 Gram(s) • 30 servings $17.99 ($0.59 per serving) Pink Lemonade 7 Gram(s) • 210 Gram(s) • 30 servings $17.99 ($0.59 per serving) Sweet Tea 7 Gram(s) • 210 Gram(s) • 30 servings $21.36 ($0.71 per serving)
$17.98($0.59 per serving)
iHerb
$ 21.36
Amazon
$ 17.98
Report prices

Analysis

Natural caffeine from coffee extract provides 127 mg, paired with 2 g taurine and 500 mg carnitine tartrate. That combination can support a noticeable but more moderate energy effect than high-stimulant pre-workouts.

The BCAA blend totals only 725 mg, and glutamine, lysine, glycine, alanine, phenylalanine, histidine, and threonine are individually modest. Green coffee extract adds chlorogenic-acid content, but its additional caffeine contribution is not stated.

The powder works best as a low-calorie energy drink with taurine rather than a complete amino or recovery product. Users relying on it for muscle support would need adequate protein and more meaningful essential-amino-acid intake elsewhere.

Who is it for
  • Adults seeking moderate workout or daytime energy
  • People who want taurine with caffeine
  • Users not relying on the product as their main amino source
Best for
  • Moderate energy and focus
  • A low-calorie workout drink
  • Taurine-supported stimulation

Pros

  • Provides 2 g taurine
  • Uses a moderate 127 mg listed caffeine amount
  • Includes 500 mg carnitine tartrate
  • Clearly lists most individual amino-acid amounts

Cons

  • BCAA blend is only 725 mg
  • Most amino acids are too small for robust recovery support
  • Green coffee may add unquantified caffeine
  • Carnitine amount is modest

Warnings

  • Green coffee extract may add caffeine beyond the stated 127 mg, so total stimulant exposure is not fully defined
  • Avoid combining with other stimulant products until personal tolerance is known
  • Take early enough to prevent caffeine-related sleep disruption
  • Phenylalanine makes the product unsuitable for people with phenylketonuria

Nutrient quality

63 Moderate impact

Taurine and moderate caffeine provide useful energy support at a reasonable serving cost. The BCAA blend is opaque and most other amino acids are token additions.

.

Ingredient transparency

71 High impact

Individual ingredient weights make the formula broadly readable. Missing active-marker yields and non-active ingredient details reduce full transparency.

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Customer satisfaction

65 Moderate impact

The supplied rating is favorable and the feedback base is adequate. No complaint-level evidence was supplied to assess recurring issues or purpose-specific experiences.

.

Value for money

61 Moderate impact

The serving cost is favorable for the amount of formula provided. Potency and standardization gaps still reduce certainty about effective value.

.
Report analysis

Goals

Energy
Energy
Impact
High effect
A- Goal FitB Strength of SupportC+ CoverageC+ Formula Quality
Caffeine · 127 mg

Caffeine provides direct short-term alertness, while taurine may support exercise performance and carnitine has a secondary fuel-metabolism role. The amino acids are otherwise lightly supplied and the formula lacks theanine or another clear counterbalance to stimulant effects.

The caffeine amount is moderate and disclosed, but green coffee extract may add an unstated amount of caffeine and makes the total stimulant load uncertain. Avoid combining it with other stimulants, and sensitive users may experience anxiety, rapid heartbeat, or sleep disruption.

Study evidence
Caffeine Supportive 68 studies
Mental Focus
Mental Focus
Impact
High effect
B Goal FitB Strength of SupportC+ CoverageB- Formula Quality
Caffeine · 127 mg

A moderate caffeine amount should provide practical acute alertness, while taurine may support the exercise context. The formula is an amino-acid energy drink rather than a complete nootropic stack.

Phenylalanine is far too low for focused precursor support, and carnitine is not supplied as brain-targeted acetyl-L-carnitine. Caffeine may cause jitters or sleep disruption in sensitive users, especially when paired with other stimulant products.

Study evidence
Caffeine Supportive 128 studies
Phenylalanine No effect 7 studies
Metabolism Boost
Metabolism Boost
Impact
High effect
B Goal FitC+ Strength of SupportB- CoverageB- Formula Quality
Caffeine · 127 mg

Natural caffeine directly supports thermogenesis, while carnitine supports fatty-acid transport and taurine supports exercise performance. The energy-drink formula has clear acute metabolic relevance.

Caffeine is moderate, taurine is substantial, and carnitine is below common performance amounts. L-carnitine tartrate is useful for exercise but less targeted to cellular energy than acetyl-L-carnitine.

Study evidence
Caffeine Disputed 40 studies
Taurine Supportive 11 studies
Productivity Boost
Productivity Boost
Impact
High effect
B Goal FitB+ Strength of SupportC- CoverageD+ Formula Quality
Caffeine · 127 mg

A moderate caffeine serving can improve alertness and concentration without reaching the extreme level found in many pre-workouts. Taurine adds energy-drink support, and the caffeine source and amount are transparent.

Phenylalanine is too small to add meaningful precursor support, and no adaptogen broadens the formula. Most amino acids serve exercise rather than cognitive performance.

Study evidence
Caffeine Supportive 108 studies
Fitness
Fitness
Impact
High effect
B Goal FitC+ Strength of SupportC+ CoverageC- Formula Quality
Caffeine · 127 mg

Taurine and moderate caffeine provide credible support for training energy and fatigue resistance. L-carnitine tartrate and an amino-acid blend broaden the formula toward recovery and fuel use.

L-carnitine, BCAAs, glutamine, and several other amino acids are supplied below typical effective sports doses. The label is therefore broad but diluted outside taurine and caffeine.

Study evidence
Caffeine Supportive 255 studies
L-Carnitine Supportive 52 studies
Taurine Supportive 21 studies
General Health
General Health
Impact
High effect
C+ Goal FitC+ Strength of SupportC CoverageC+ Formula Quality
Glycine · 345 mgTaurine · 2000 mg

A high taurine amount gives the energy powder some credible support for cellular and cardiovascular function. Carnitine and disclosed amino acids add narrower metabolic and exercise-related support.

Glycine is too low for focused sleep or collagen use, and the formula does not cover broad nutritional gaps. The disclosed caffeine may cause jitters or disturb sleep in caffeine-sensitive users, especially later in the day.

Study evidence
Glycine Supportive 4 studies
Taurine No effect 3 studies

Ingredients

IngredientAmount per serving
Calories
10 Calorie(s)
L-Carnitine L-Tartrate
500 mg
Caffeine, Natural (Coffea robusta Bean Extract)
 127 mg
Green Coffee Bean Extract (Coffea robusta Bean Extract)
 125 mg
Taurine
2000 mg
ACUTS BCAAs
725 mg
L-Alanine
500 mg
L-Glycine
345 mg
L-Lysine Hydrochloride
300 mg
L-Glutamine
250 mg
L-Phenylalanine
50 mg
L-Histidine Hydrochloride
50 mg
L-Threonine
50 mg
Gluten Free Adults 18–50 Sugar Free
Report overview
Alanine · 500 mg OverallScore85
A- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD+ Value

Clearly identified L-Alanine is supplied at the top dose used in this collection. The powder discloses the amount directly and avoids a large capsule burden. Added caffeine and other amino acids make it an energy blend rather than a plain alanine product, and 127 mg of caffeine may be unsuitable near bedtime or for caffeine-sensitive people.

View ingredientView products
Caffeine (Coffea robusta Bean Extract) · 127 mg OverallScore68
D- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyC Value

Natural caffeine from coffee beans is clearly quantified, though no source standardization is stated. The moderate amount and absence of another recognized stimulant support a practical safety profile for many users. Its cost is near the collection norm, giving it fair value despite the basic immediate-release delivery.

View ingredientView products
Taurine · 2000 mg OverallScore57
D+ Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyD+ Value

The label states taurine without identifying L-Taurine, free-form status, or a purity grade. The 2000 mg serving provides a high-potency taurine dose, although the label does not trace its source or state a quality-testing standard. Mid-range taurine value is accompanied by 127 mg caffeine, which may disturb sleep or cause jitters in sensitive users.

View ingredientView products
Loading alternative details
66 Performance

Amino:Cuts Amino-Charged Energy Drink Pink Lemonade

ALLMAX
No meaningful ingredient advantage is shown because the flavor variant uses the same disclosed active profile. Taurine and moderate caffeine remain the useful core, while the opaque BCAA blend and token amino-acid additions keep the same limitations.
66 Performance

Amino:Cuts Amino-Charged Energy Drink Goji Berry

ALLMAX
No meaningful ingredient advantage is shown because the flavor variant uses the same disclosed active profile. Taurine and moderate caffeine remain the useful core, while the opaque BCAA blend and token amino-acid additions keep the same limitations.
66 Budget

Amino:Cuts Amino-Charged Energy Drink Blue Raspberry

ALLMAX
No eligible candidate is cheaper in the supplied serving data, so the flavor variant only matches the original’s routine cost. The disclosed taurine, caffeine, opaque BCAA blend, and lightly dosed amino acids remain materially the same.
66 Budget

Amino:Cuts Amino-Charged Energy Drink Pina Colada

ALLMAX
No eligible candidate is cheaper in the supplied serving data, so the flavor variant only matches the original’s routine cost. The disclosed taurine, caffeine, opaque BCAA blend, and lightly dosed amino acids remain materially the same.
66 Value

Amino:Cuts Amino-Charged Energy Drink Orange

ALLMAX
Comparable routine cost and the same disclosed active profile make the flavor variant similar in value rather than clearly better. Taurine and moderate caffeine remain useful, but the opaque BCAA blend prevents a stronger value conclusion.
65 Value

A:Cuts Amino-Charged Energy Drink Sweet Tea

ALLMAX
Comparable routine cost and the same disclosed active profile make the flavor variant similar in value rather than clearly better. Taurine and moderate caffeine remain useful, but the opaque BCAA blend prevents a stronger value conclusion.
Report alternatives

Sources

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

  1. 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
  2. Caffeine administration at night during extended wakefulness effectively mitigates performance impairment but not subjective assessments of fatigue and sleepiness.
    Paech GM; Banks S; Pajcin M; Grant C; Johnson K; Kamimori GH; Vedova CB · Pharmacology, biochemistry, and behavior · 2017
    Randomized trial24 participantsEnergy forCaffeine
  3. A critical review of caffeine withdrawal: empirical validation of symptoms and signs, incidence, severity, and associated features.
    Juliano LM; Griffiths RR · Psychopharmacology · 2005
    Systematic review66 studies pooledEnergy forCaffeine
  4. L-Carnitine supplementation reduces oxidized LDL cholesterol in patients with diabetes.
    Malaguarnera M; Vacante M; Avitabile T; Malaguarnera M; Cammalleri L; Motta M · The American journal of clinical nutrition · 2009
    Randomized trial81 participantsCardiovascular Support forL-Carnitine
  5. L-Carnitine's Effect on the Biomarkers of Metabolic Syndrome: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Choi M; Park S; Lee M · Nutrients · 2021
    Meta-analysis9 studies pooledCardiovascular Support forL-Carnitine
  6. The Effects of L-Carnitine Supplementation on Weight Loss, Glycemic Control, and Cardiovascular Risk Factors in Patients With Type 2 Diabetes: A Systematic Review and Dose-response Meta-Analysis of Randomized Controlled Trials.
    Mirrafiei A; Jayedi A; Shab-Bidar S · Clinical therapeutics · 2024
    Meta-analysis2,041 participants21 studies pooledCardiovascular Support forL-Carnitine
  7. The Effects of L-Carnitine on Echocardiographic Changes in Patients With β-Thalassemia Major and Intermedia.
    Shahidi M; Hashemi SR; Fattahi N; Roshani D; Vahedi S; Sharifi P; Moradveisi B · Journal of pediatric hematology/oncology · 2020
    Randomized trial60 participantsCardiovascular Support forL-Carnitine
  8. Efficacy and tolerability of combined treatment with L-carnitine and simvastatin in lowering lipoprotein(a) serum levels in patients with type 2 diabetes mellitus.
    Solfrizzi V; Capurso C; Colacicco AM; D'Introno A; Fontana C; Capurso SA; Torres F; Gadaleta AM; Koverech A; Capurso A; Panza F · Atherosclerosis · 2007
    Randomized trial52 participantsCardiovascular Support forL-Carnitine
  9. Taurine Supplementation Lowers Blood Pressure and Improves Vascular Function in Prehypertension: Randomized, Double-Blind, Placebo-Controlled Study.
    Sun Q; Wang B; Li Y; Sun F; Li P; Xia W; Zhou X; Li Q; Wang X; Chen J; Zeng X; Zhao Z; He H; Liu D; Zhu Z · Hypertension (Dallas, Tex. : 1979) · 2016
    Randomized trial120 participantsCardiovascular Support forTaurine
  10. Taurine ameliorates blood pressure and vascular function in patients with type 2 diabetes: Randomized, double-blind, placebo-controlled trial.
    Li Y; Wang Q; Liu Y; Li Q; Xia W; Lin S; Yang Q; Scholze A; Zhao Z; He H; Zhang H; Yan Z; Tepel M; Mu H; Zhu Z; Liu D · iScience · 2025
    Randomized trial165 participantsCardiovascular Support forTaurine
  11. Taurine reduces the risk for metabolic syndrome: a systematic review and meta-analysis of randomized controlled trials.
    Tzang CC; Chi LY; Lin LH; Lin TY; Chang KV; Wu WT; Özçakar L · Nutrition & diabetes · 2024
    Meta-analysis1,024 participants25 studies pooledCardiovascular Support forTaurine
  12. Effects of Oral Taurine Supplementation on Cardiometabolic Risk Factors: A Meta-analysis and Systematic Review of Randomized Clinical Trials.
    Nie Z; Liu Y; Zhang M; Wu C; Cao Q; Xu J; Zheng Y; Min Z; Zhang W; Han S · Nutrition reviews · 2025
    Meta-analysis34 studies pooledCardiovascular Support General Health forTaurine
  13. The effects of taurine supplementation on glycemic control and serum lipid profile in patients with type 2 diabetes: a randomized, double-blind, placebo-controlled trial.
    Maleki V; Alizadeh M; Esmaeili F; Mahdavi R · Amino acids · 2021
    Randomized trial45 participantsCardiovascular Support forTaurine
  14. Efficacy of glutamine supplementation in postoperative patients undergoing hepatic surgery: a systematic review and meta-analysis of randomized controlled trials.
    Meng X; Zhang M; Wang X · Clinics (Sao Paulo, Brazil) · 2026
    Meta-analysis1,198 participants18 studies pooledDetoxification forGlutamine
  15. Glutamine supplementation in preterm infants receiving parenteral nutrition leads to an early improvement in liver function.
    Wang Y; Cai W; Tao YX; Tang QY; Feng Y; Wu J · Asia Pacific journal of clinical nutrition · 2014
    Randomized trial30 participantsDetoxification forGlutamine
  16. Parenteral glutamine protects hepatic function during bone marrow transplantation.
    Brown SA; Goringe A; Fegan C; Davies SV; Giddings J; Whittaker JA; Burnett AK; Poynton CH · Bone marrow transplantation · 1998
    Randomized trial34 participantsDetoxification forGlutamine
  17. Protective effect of parenteral glutamine supplementation on hepatic function in very low birth weight infants.
    Wang Y; Tao YX; Cai W; Tang QY; Feng Y; Wu J · Clinical nutrition (Edinburgh, Scotland) · 2010
    Randomized trial30 participantsDetoxification forGlutamine
  18. A multistrain probiotic increases the serum glutamine/glutamate ratio in patients with cirrhosis: a metabolomic analysis.
    Laghi L; Román E; Lan Q; Nieto JC; Canalda-Baltrons A; Poca M; Sánchez-Rodríguez MB; Clària J; Alvarado E; Cuyàs B; Sánchez E; Vidal S; Guarner C; Escorsell À; Manichanh C; Soriano G · Hepatology communications · 2023
    Randomized trial32 participantsDetoxification forGlutamine
  19. The impact of obesity-associated glycine deficiency on the elimination of endogenous and exogenous metabolites via the glycine conjugation pathway.
    Tan HC; Hsu JW; Tai ES; Chacko S; Kovalik JP; Jahoor F · Frontiers in endocrinology · 2024
    Cohort study42 participantsDetoxification forGlycine
  20. Metabolic impact of dietary glycine supplementation in individuals with severe obesity.
    Tan HC; Hsu JW; Tai ES; Chacko S; Wu V; Yen PM; Kovalik JP; Jahoor F · Scientific reports · 2025
    Single-arm trial19 participantsDetoxification forGlycine
  21. Contribution towards a Metabolite Profile of the Detoxification of Benzoic Acid through Glycine Conjugation: An Intervention Study.
    Irwin C; van Reenen M; Mason S; Mienie LJ; Westerhuis JA; Reinecke CJ · PloS one · 2017
    Non-randomized trial21 participantsDetoxification forGlycine
  22. Glycine conjugation of para-aminobenzoic acid (PABA): a quantitative test of liver function.
    Furuya KN; Durie PR; Roberts EA; Soldin SJ; Verjee Z; Yung-Jato L; Giesbrecht E; Ellis L · Clinical biochemistry · 1996
    Methods validation study74 participantsDetoxification forGlycine
  23. The treatment of isovaleric acidemia with glycine supplement
    M Naglak, R Salvo, K Madsen, P Dembure, L Elsas · Pediatric research · 1988
    Non-randomized trial2 participantsDetoxification forGlycine
  24. Dietary amino acid taurine ameliorates liver injury in chronic hepatitis patients.
    Hu YH; Lin CL; Huang YW; Liu PE; Hwang DF · Amino acids · 2008
    Non-randomized trial24 participantsDetoxification forTaurine
  25. Taurine status and response to intravenous taurine supplementation in adults with short-bowel syndrome undergoing long-term parenteral nutrition: a pilot study.
    Schneider SM; Joly F; Gehrardt MF; Badran AM; Myara A; Thuillier F; Coudray-Lucas C; Cynober L; Trivin F; Messing B · The British journal of nutrition · 2006
    Single-arm trial32 participantsDetoxification forTaurine
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. A systematic review and meta-analysis of propionyl-L-carnitine effects on exercise performance in patients with claudication.
    Brass EP; Koster D; Hiatt WR; Amato A · Vascular medicine (London, England) · 2013
    Meta-analysis13 studies pooledFitness forL-Carnitine
  36. Oral acetyl-L-carnitine therapy reduces fatigue in overt hepatic encephalopathy: a randomized, double-blind, placebo-controlled study.
    Malaguarnera M; Vacante M; Giordano M; Pennisi G; Bella R; Rampello L; Malaguarnera M; Li Volti G; Galvano F · The American journal of clinical nutrition · 2011
    Randomized trial121 participantsFitness forL-Carnitine
  37. Prolonged oral L-carnitine substitution increases bicycle ergometer performance in patients with severe, ischemically induced cardiac insufficiency.
    Löster H; Miehe K; Punzel M; Stiller O; Pankau H; Schauer J · Cardiovascular drugs and therapy · 2000
    Randomized trial41 participantsFitness forL-Carnitine
  38. L-Carnitine treatment reduces severity of physical and mental fatigue and increases cognitive functions in centenarians: a randomized and controlled clinical trial.
    Malaguarnera M; Cammalleri L; Gargante MP; Vacante M; Colonna V; Motta M · The American journal of clinical nutrition · 2008
    Randomized trial66 participantsFitness forL-Carnitine
  39. Effects of nine weeks L-Carnitine supplementation on exercise performance, anaerobic power, and exercise-induced oxidative stress in resistance-trained males.
    Koozehchian MS; Daneshfar A; Fallah E; Agha-Alinejad H; Samadi M; Kaviani M; Kaveh B M; Jung YP; Sablouei MH; Moradi N; Earnest CP; Chandler TJ; Kreider RB · Journal of exercise nutrition & biochemistry · 2020
    Randomized trial23 participantsFitness forL-Carnitine
  40. Taurine supplementation enhances anaerobic power in elite speed skaters: A double-blind, randomized, placebo-controlled, crossover study.
    Buzdağlı Y; Eyipınar CD; Öget F; Şıktar E; Forbes SC; Tekin A · Biology of sport · 2023
    Randomized trial30 participantsFitness forTaurine
  41. The effect of acute taurine ingestion on 3-km running performance in trained middle-distance runners.
    Balshaw TG; Bampouras TM; Barry TJ; Sparks SA · Amino acids · 2013
    Randomized trial8 participantsFitness forTaurine
  42. Effects of different doses of taurine supplementation on repeated-sprint performance after exhaustive exercise in a high temperature and humidity environment.
    Cheng X; Lin Y; Li Z · Frontiers in nutrition · 2026
    Randomized trial16 participantsFitness forTaurine
  43. Oral taurine improves critical power and severe-intensity exercise tolerance.
    Waldron M; Patterson SD; Jeffries O · Amino acids · 2020
    Randomized trial12 participantsFitness forTaurine
  44. Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat.
    Page LK; Jeffries O; Waldron M · European journal of sport science · 2019
    Randomized trial11 participantsFitness forTaurine
  45. Air-abrasive debridement with glycine powder versus manual debridement and chlorhexidine administration for the maintenance of peri-implant health status: a six-month randomized clinical trial.
    Lupi SM; Granati M; Butera A; Collesano V; Rodriguez Y Baena R · International journal of dental hygiene · 2018
    Randomized trial46 participantsGeneral Health forGlycine
  46. The effects of glycine on auditory mismatch negativity in schizophrenia.
    Greenwood LM; Leung S; Michie PT; Green A; Nathan PJ; Fitzgerald P; Johnston P; Solowij N; Kulkarni J; Croft RJ · Schizophrenia research · 2018
    Randomized trial22 participantsGeneral Health forGlycine
  47. Dietary glycine improves urine storage symptoms in urology outpatients.
    Sugaya K; Oh-Oka H; Yamada T; Miyata M; Ashitomi K; Kadekawa K; Nishijima S · Journal of complementary & integrative medicine · 2021
    Non-randomized trial20 participantsGeneral Health forGlycine
  48. Oral supplementation with glycine reduces oxidative stress in patients with metabolic syndrome, improving their systolic blood pressure.
    Díaz-Flores M; Cruz M; Duran-Reyes G; Munguia-Miranda C; Loza-Rodríguez H; Pulido-Casas E; Torres-Ramírez N; Gaja-Rodriguez O; Kumate J; Baiza-Gutman LA; Hernández-Saavedra D · Canadian journal of physiology and pharmacology · 2014
    Randomized trial60 participantsGeneral Health forGlycine
  49. Cognitive Effects of Taurine and Related Sulphur-Containing Amino Acids: A Systematic Review of Human Trials and Considerations for Plant-Based Dietary Transitions.
    Moore JA; Cousins AL; Taylor RMJ; Griffiths AR; Young HA · Foods (Basel, Switzerland) · 2026
    Systematic review244 participants8 studies pooledGeneral Health forTaurine
  50. Association between habitual dietary taurine intake and the risk of metabolic dysfunction-associated steatotic liver disease: a prospective cohort study.
    Zhang S; Xu X; Wang D; Gu Y; Wu H; Meng G; Zhang Q; Liu L; Borné Y; Niu K; Bai L · Food & function · 2026
    Cohort study16,699 participantsGeneral Health forTaurine
  51. 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
  52. 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
  53. 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
  54. Effects of caffeine on mood and performance: a study of realistic consumption.
    Brice CF; Smith AP · Psychopharmacology · 2003
    Clinical trial24 participantsMental Focus forCaffeine
  55. 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
  56. Cognition after a 4-week high phenylalanine intake in adults with phenylketonuria - a randomized controlled trial.
    Trepp R; Muri R; Maissen-Abgottspon S; Haynes AG; Hochuli M; Everts R · The American journal of clinical nutrition · 2024
    Randomized trial30 participantsMental Focus forPhenylalanine
  57. A systematic review of cognitive functioning in early treated adults with phenylketonuria.
    Hofman DL; Champ CL; Lawton CL; Henderson M; Dye L · Orphanet journal of rare diseases · 2019
    Systematic review16 studies pooledMental Focus forPhenylalanine
  58. Are Functional Brain Networks Sensitive to High Phenylalanine in Adults With Phenylketonuria?
    Vallesi V; Morishima Y; Winiger L; Trepp R; Everts R; Muri R · JIMD reports · 2026
    Randomized trial23 participantsMental Focus forPhenylalanine
  59. Sustained attention in untreated non-PKU-hyperphenylalaninemia.
    Weglage J; Schmidt E; Fünders B; Pietsch M; Ullrich K · Journal of clinical and experimental neuropsychology · 1997
    Case-control study48 participantsMental Focus forPhenylalanine
  60. Effects of L-histidine depletion and L-tyrosine/L-phenylalanine depletion on sensory and motor processes in healthy volunteers.
    van Ruitenbeek P; Sambeth A; Vermeeren A; Young SN; Riedel WJ · British journal of pharmacology · 2009
    Clinical trial17 participantsMental Focus forPhenylalanine
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