Differences in the effects of Kenyan, Tanzanian, and Ethiopian coffee intake on interstitial glucose levels measured by FreeStyle Libre: A pilot case study
ABSTRACT: Background: Although generally considered part of a healthy diet, coffee consumption has been suspected to be associated with elevated epinephrine levels and increasing insulin resistance. Objectives: We studied the effects of the intake of 3 different types of coffee (Tanzanian, Ethiopia...
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doaj-5b3ee3197bd340eb8b2c9411f5e9ac5f2020-12-13T04:17:29ZengElsevierCurrent Therapeutic Research0011-393X2020-01-0193100606Differences in the effects of Kenyan, Tanzanian, and Ethiopian coffee intake on interstitial glucose levels measured by FreeStyle Libre: A pilot case studyJunichi Okada, MD, PhD0Aya Osaki, MD, PhD1Yoko Shimoda, MD, PhD2Eijiro Yamada, MD, PhD3Tsugumichi Saito, MD, PhD4Atsushi Ozawa, MD, PhD5Yasuyo Nakajima, MD, PhD6Kazuya Okada, MD7Shuichi Okada, MD, PhD8Masanobu Yamada, MD, PhD9Department of Endocrinology and Diabetes, Gunma University Hospital, Maebashi, Gunma, JapanDepartment of Endocrinology and Diabetes, Gunma University Hospital, Maebashi, Gunma, JapanDepartment of Endocrinology and Diabetes, Gunma University Hospital, Maebashi, Gunma, JapanDepartment of Endocrinology and Diabetes, Gunma University Hospital, Maebashi, Gunma, JapanDepartment of Endocrinology and Diabetes, Gunma University Hospital, Maebashi, Gunma, JapanDepartment of Endocrinology and Diabetes, Gunma University Hospital, Maebashi, Gunma, JapanDepartment of Endocrinology and Diabetes, Gunma University Hospital, Maebashi, Gunma, JapanOmagari Kousei Medical Center, Daisen, Akita, JapanDepartment of Endocrinology and Diabetes, Gunma University Hospital, Maebashi, Gunma, Japan; Address correspondence to: Shuichi Okada, MD, PhD, Department of Endocrinology and Diabetes, Gunma University Hospital, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan.Department of Endocrinology and Diabetes, Gunma University Hospital, Maebashi, Gunma, JapanABSTRACT: Background: Although generally considered part of a healthy diet, coffee consumption has been suspected to be associated with elevated epinephrine levels and increasing insulin resistance. Objectives: We studied the effects of the intake of 3 different types of coffee (Tanzanian, Ethiopian, and Kenyan) on postprandial interstitial glucose levels. Method: Interstitial glucose levels were measured every 15 minutes using the FreeStyle Libre glucose monitoring system (Abbott Diabetes Care Ltd, Witney, United Kingdom) in each individual after drinking coffee compared with when not consuming coffee. Results: Unlike Tanzanian and Ethiopian coffees, Kenyan coffee suppressed the increase of postprandial interstitial glucose levels. Kenyan coffee beans contain less anhydrous caffeine and more chlorogenic acid than Tanzanian and Ethiopian coffee beans. These findings may explain the different effects of these coffee types on postprandial interstitial glucose levels. Furthermore, Kenyan coffee beans inhibited α-glucosidase activity, which may partially explain why Kenyan coffee reduces postprandial interstitial glucose levels. Conclusions: Coffee is widely consumed as a beverage worldwide, and our findings suggest that patients with diabetes mellitus may benefit from drinking Kenyan coffee because of its ability to reduce postprandial interstitial glucose levels. (Curr Ther Res Clin Exp. 2020; 81:XXX–XXX)http://www.sciencedirect.com/science/article/pii/S0011393X20300321CoffeeContinuous glucose monitoringInterstitial glucose |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Junichi Okada, MD, PhD Aya Osaki, MD, PhD Yoko Shimoda, MD, PhD Eijiro Yamada, MD, PhD Tsugumichi Saito, MD, PhD Atsushi Ozawa, MD, PhD Yasuyo Nakajima, MD, PhD Kazuya Okada, MD Shuichi Okada, MD, PhD Masanobu Yamada, MD, PhD |
spellingShingle |
Junichi Okada, MD, PhD Aya Osaki, MD, PhD Yoko Shimoda, MD, PhD Eijiro Yamada, MD, PhD Tsugumichi Saito, MD, PhD Atsushi Ozawa, MD, PhD Yasuyo Nakajima, MD, PhD Kazuya Okada, MD Shuichi Okada, MD, PhD Masanobu Yamada, MD, PhD Differences in the effects of Kenyan, Tanzanian, and Ethiopian coffee intake on interstitial glucose levels measured by FreeStyle Libre: A pilot case study Current Therapeutic Research Coffee Continuous glucose monitoring Interstitial glucose |
author_facet |
Junichi Okada, MD, PhD Aya Osaki, MD, PhD Yoko Shimoda, MD, PhD Eijiro Yamada, MD, PhD Tsugumichi Saito, MD, PhD Atsushi Ozawa, MD, PhD Yasuyo Nakajima, MD, PhD Kazuya Okada, MD Shuichi Okada, MD, PhD Masanobu Yamada, MD, PhD |
author_sort |
Junichi Okada, MD, PhD |
title |
Differences in the effects of Kenyan, Tanzanian, and Ethiopian coffee intake on interstitial glucose levels measured by FreeStyle Libre: A pilot case study |
title_short |
Differences in the effects of Kenyan, Tanzanian, and Ethiopian coffee intake on interstitial glucose levels measured by FreeStyle Libre: A pilot case study |
title_full |
Differences in the effects of Kenyan, Tanzanian, and Ethiopian coffee intake on interstitial glucose levels measured by FreeStyle Libre: A pilot case study |
title_fullStr |
Differences in the effects of Kenyan, Tanzanian, and Ethiopian coffee intake on interstitial glucose levels measured by FreeStyle Libre: A pilot case study |
title_full_unstemmed |
Differences in the effects of Kenyan, Tanzanian, and Ethiopian coffee intake on interstitial glucose levels measured by FreeStyle Libre: A pilot case study |
title_sort |
differences in the effects of kenyan, tanzanian, and ethiopian coffee intake on interstitial glucose levels measured by freestyle libre: a pilot case study |
publisher |
Elsevier |
series |
Current Therapeutic Research |
issn |
0011-393X |
publishDate |
2020-01-01 |
description |
ABSTRACT: Background: Although generally considered part of a healthy diet, coffee consumption has been suspected to be associated with elevated epinephrine levels and increasing insulin resistance. Objectives: We studied the effects of the intake of 3 different types of coffee (Tanzanian, Ethiopian, and Kenyan) on postprandial interstitial glucose levels. Method: Interstitial glucose levels were measured every 15 minutes using the FreeStyle Libre glucose monitoring system (Abbott Diabetes Care Ltd, Witney, United Kingdom) in each individual after drinking coffee compared with when not consuming coffee. Results: Unlike Tanzanian and Ethiopian coffees, Kenyan coffee suppressed the increase of postprandial interstitial glucose levels. Kenyan coffee beans contain less anhydrous caffeine and more chlorogenic acid than Tanzanian and Ethiopian coffee beans. These findings may explain the different effects of these coffee types on postprandial interstitial glucose levels. Furthermore, Kenyan coffee beans inhibited α-glucosidase activity, which may partially explain why Kenyan coffee reduces postprandial interstitial glucose levels. Conclusions: Coffee is widely consumed as a beverage worldwide, and our findings suggest that patients with diabetes mellitus may benefit from drinking Kenyan coffee because of its ability to reduce postprandial interstitial glucose levels. (Curr Ther Res Clin Exp. 2020; 81:XXX–XXX) |
topic |
Coffee Continuous glucose monitoring Interstitial glucose |
url |
http://www.sciencedirect.com/science/article/pii/S0011393X20300321 |
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