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Article

Effects of Matcha Green Tea Powder on Cognitive Functions of Community-Dwelling Elderly Individuals

1
Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8562, Japan
2
Community Health Promotion Laboratory, Mitsui Fudosan, Co., Ltd., Kashiwa 277-8519, Japan
3
Urban Design Center Kashiwanoha (UDCK), Kashiwa 277-0871, Japan
4
Marketing & Communications Division, Nestle Japan Ltd., Tokyo 140-0002, Japan
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Nutrients 2020, 12(12), 3639; https://doi.org/10.3390/nu12123639
Received: 27 October 2020 / Revised: 21 November 2020 / Accepted: 24 November 2020 / Published: 26 November 2020
(This article belongs to the Special Issue Nutrition in Cognitive Impairment, Dementia, and Alzheimer's Disease)
Matcha Green Tea Powder contains a variety of active ingredients beneficial to health, such as tea catechins, lutein and vitamin K. It is also known that these ingredients confer benefits upon cognitive functions of elderly people. Therefore, we aimed to investigate the relationship between a daily supplementation of Matcha and the change in cognitive functions of community-dwelling elderly people. A randomized, double-blind, placebo-controlled 12-week trial was performed. Sixty-one participants were recruited and randomly assigned to receive test drink containing 3 g powder from fresh Matcha or placebo powder per day. Changes in cognitive function were assessed utilizing a psychometric test battery. Daily food intake was assessed by a Brief-type Self-administered Diet History Questionnaire (BDHQ). In the gender-specific analysis, a significant cognitive enhancement was observed in the Montreal Cognitive Assessment (MoCA) score in the active group of women. In dietary analysis, we found a significant inverse correlation between consumption of vitamin K in daily diet, excluding test drinks, and change in MoCA. The present study suggests that daily supplementation of Matcha Green Tea Powder has protective effects against cognitive decline in community-dwelling elderly women. View Full-Text
Keywords: green tea; cognitive function; memory function; impulsivity; aging; vitamin K green tea; cognitive function; memory function; impulsivity; aging; vitamin K
MDPI and ACS Style

Sakurai, K.; Shen, C.; Ezaki, Y.; Inamura, N.; Fukushima, Y.; Masuoka, N.; Hisatsune, T. Effects of Matcha Green Tea Powder on Cognitive Functions of Community-Dwelling Elderly Individuals. Nutrients 2020, 12, 3639. https://doi.org/10.3390/nu12123639

AMA Style

Sakurai K, Shen C, Ezaki Y, Inamura N, Fukushima Y, Masuoka N, Hisatsune T. Effects of Matcha Green Tea Powder on Cognitive Functions of Community-Dwelling Elderly Individuals. Nutrients. 2020; 12(12):3639. https://doi.org/10.3390/nu12123639

Chicago/Turabian Style

Sakurai, Keisuke, Chutong Shen, Yuri Ezaki, Noriko Inamura, Yoichi Fukushima, Nobutaka Masuoka, and Tatsuhiro Hisatsune. 2020. "Effects of Matcha Green Tea Powder on Cognitive Functions of Community-Dwelling Elderly Individuals" Nutrients 12, no. 12: 3639. https://doi.org/10.3390/nu12123639

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