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RESEARCH ARTICLE
Year : 2018  |  Volume : 8  |  Issue : 4  |  Page : 160-166

Daily ingestion of alkaline electrolyzed water containing hydrogen influences human health, including gastrointestinal symptoms


1 Appliances Company, Panasonic Corporation, Shiga, Japan
2 Osaka Municipal Health Promotion Center, Osaka, Japan
3 Osaka City University, Graduate School of Medicine, Osaka, Japan

Correspondence Address:
Yoshinori Tanaka
Appliances Company, Panasonic Corporation, Shiga
Japan
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Source of Support: The study was supported by a grant from Matsushita Electric Works Co., Ltd. Home Appliances R&D Center (to HN)., Conflict of Interest: None


DOI: 10.4103/2045-9912.248267

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In Japan, alkaline electrolyzed water (AEW) apparatus have been approved as a medical device. And for the patients with gastrointestinal symptoms, drinking AEW has been found to be effective in relieving gastrointestinal symptoms. But some users of AEW apparatus do not have abdominal indefinite complaint. Little attention has been given to the benefit for the users which have no abdominal indefinite complaint. The object of this study is to evaluate the effect on health, including gastrointestinal symptoms, when a person without abdominal indefinite complaint, etc., drinks AEW on a daily basis. A double-blind, randomized controlled trial has been designed. Four-week period of everyday water drinking, PW drinking group: drink purified tap water as a placebo, AEW drinking group: drink alkaline electrolyzed water which made by electrolysis of purified tap water. Before the experiment and after the 4-week period of water drinking, Blood tests, physical fitness evaluations, and questionnaire evaluations is conducted. In this study, we did not specifically select patients with gastrointestinal symptoms. Sufficiently clear effect could not be confirmed. But the stools were more normal, and, as shown in the previous report, that drinking AEW is considered to contribute to intestinal normalization. In addition, when drinking AEW, a high proportion of the respondents said that they felt they were able to sleep soundly, and the proportion of subjects who answered that they felt good when awakening increased. The effect of reducing oxidative stress, thus allowing for improved sleep, was exhibited by drinking AEW containing hydrogen, which is considered to be an antioxidant substance. This research were approved by the Ethics Committee of the Osaka City University Graduate School of Medicine (No. 837) and were registered in the University Hospital Medical Information Network (UMIN) Clinical Trials Registry (UMIN ID: UMIN000031800) on March 22, 2018.


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