Impact of AmaTea® Max on physiological measures and gaming performance in active gamers: A placebo-controlled, double-blind, randomized study

Background and Aim: The activity of “gaming” has increased greatly in popularity in recent years, with many gamers using nutritional supplements to aid mood and gaming performance. We evaluated the impact of AmaTea® Max (referred to as AmaTea® throughout; a patented dietary supplement consisting of a blend of caffeine and polyphenol antioxidants), compared to both caffeine and a placebo, on gaming and cognitive performance in active gamers.
Methods: Subjects reported to the lab on three occasions, separated by approximately 1 week. On each day, they had baseline measurements taken and then played the game Fortnite for four 1-h periods. Measures of cognitive performance, gaming performance, heart rate and blood pressure (BP), and blood cortisol were measured before and at selected times following gameplay.
Results: Neither caffeine nor AmaTea® impacted gaming or cognitive performance in a statistically significant manner. However, a trend (P=0.075) was noted for the condition effect for kills/match, with values 21% higher for AmaTea® (1.84) compared to placebo (1.51), and 12% higher for AmaTea® compared to caffeine (1.63). Subjective mood was relatively unaffected, although a condition effect was noted for jittery (P=0.05), with values lower for placebo than for caffeine (P=0.02). BP was
minimally elevated with both AmaTea® and caffeine, while cortisol followed the normal diurnal variation and was lower for placebo than AmaTea® and caffeine.
Conclusion: AmaTea® modestly increased kills/match during gameplay. It is possible that a different gaming stimulus, varied time of gameplay, or different dosage of the supplement may have yielded different results.
Relevance for Subjects: Active gamers who seek to use a dietary supplement for purposes of gaming performance may benefit slightly from ingestion of AmaTea® before gameplay while experiencing greater vigor and lower fatigue as compared to placebo.
[1] Yin K, Zi Y, Zhuang W, Gao Y, Tong Y, Song L, et al. Linking Esports to Health Risks and Benefits: Current
Knowledge and Future Research Needs. J Sport Health Sci 2020;9:485-8.
[2] Fiore R, Zampaglione D, Murazzi E, Bucchieri F, Cappello F, Fucarino A. The eSports Conundrum: Is the
Sports Sciences Community Ready to Face Them? A Perspective. J Sports Med Phys Fitness 2020;60:1591-602.
[3] Nagorsky E, Wiemeyer J. The Structure of Performance and Training in Esports. PLoS One 2020;15:1-10.
[4] Bányai F, Zsila Á, Griffiths MD, Demetrovics Z, Király O. Career as a Professional Gamer: Gaming Motives as
Predictors of Career Plans to Become a Professional Esport Player. Front Psychol 2020;11:1866.
[5] Thomas CJ, Rothschild J, Earnest CP, Blaisdell A. The Effects of Energy Drink Consumption on Cognitive and
Physical Performance in Elite League of Legends Players. Sports 2019;7:196.
[6] Emara AK, Ng MK, Cruickshank JA, Kampert MW, PiuzziNS, Schaffer JL, et al. Gamer’s Health Guide: Optimizing Performance, Recognizing Hazards, and Promoting Wellness in Esports. Curr Sports Med Rep 2020;19:537-45.
[7] Campbell MJ, Toth AJ, Moran AP, Kowal M, Exton C. eSports: A New Window on Neurocognitive Expertise?
Prog Brain Res 2018;240:161-74.
[8] Duggan J. How Fortnite Became the Biggest Game in the World, IGN; 2018. p. 1.
[9] Brühl AB, Sahakian BJ. Drugs, Games, and Devices for Enhancing Cognition: Implications for Work and Society. Ann N Y Acad Sci 2016;1369:195-217.
[10] Onaolapo AY, Obelawo AY, Onaolapo OJ. Brain Ageing, Cognition and Diet: A Review of the Emerging Roles of Food-Based Nootropics in Mitigating Age-related Memory Decline. Curr Aging Sci 2019;12:2-14.
[11] McLellan TM, Caldwell JA, Lieberman HR. A Review of Caffeine’s Effects on Cognitive, Physical and Occupational Performance. Neurosci Biobehav Rev 2016;71:294-312.
[12] Kamimori GH, McLellan TM, Tate CM, Voss DM, Niro P, Lieberman HR. Caffeine Improves Reaction
Time, Vigilance and Logical Reasoning During Extended Periods with Restricted Opportunities for Sleep.
Psychopharmacology (Berl) 2015;232:2031-42.
[13] Temple JL, Bernard C, Lipshultz SE, Czachor JD, Westphal JA, Mestre MA. The Safety of Ingested Caffeine:
A Comprehensive Review. Front Psychiatry 2017;8:80.
[14] Verster JC, Koenig J. Caffeine Intake and Its Sources: A Review of National Representative Studies. Crit Rev
Food Sci Nutr 2018;58:1250-9.
[15] Mahoney CR, Giles GE, Marriott BP, Judelson DA, Glickman EL, Geiselman PJ, et al. Intake of Caffeine From
All Sources and Reasons for Use by College Students. Clin Nutr 2019;38:668-75.
[16] Wise G, Negrin A. A Critical Review of the Composition and History of Safe Use of Guayusa: A Stimulant
and Antioxidant Novel Food. Crit Rev Food Sci Nutr 2020;60:2393-404.
[17] García-Ruiz A, Baenas N, Benítez-González AM, Stinco CM, Meléndez-Martínez AJ, Moreno DA, et al.
Guayusa (Ilex guayusa L.) New Tea: Phenolic and Carotenoid Composition and Antioxidant Capacity. J Sci
Food Agric 2017;97:3929-36.
[18] Gan RY, Zhang D, Wang M, Corke H. Health Benefits of Bioactive Compounds From the Genus Ilex, a
Source of Traditional Caffeinated Beverages. Nutrients 2018;10:1682.
[19] Krieger DR, Kalman DS, Feldman S, Arnillas L, GoldbergD, Gisbert O, et al. The Safety, Pharmacokinetics, and Nervous System Effects of Two Natural Sources of Caffeine in Healthy Adult Males. Clin Transl Sci 2016;9:246-51.
[20] Hussain A, Jiji AK, Barke P, Biswas S, Tabrez SS. Cardiovascular Pathologies Associated with Excessive
Energy Drink Consumption: A Review. Crit Rev Eukaryot Gene Expr 2018;28:107-13.
[21] Chrysant SG. The Impact of Coffee Consumption on Blood Pressure, Cardiovascular Disease and Diabetes Mellitus. Expert Rev Cardiovasc Ther 2017;15:151-6.