Effects of 16-Week Consumption of Caffeinated and Decaffeinated Instant Coffee on Glucose Metabolism in a Randomized Controlled Trial
Joint Authors
Maki, Takako
Kono, Suminori
Adachi, Masahiro
Okada, Tomoko
Ikeda, Mizuko
Nomura, Masatoshi
Shimazoe, Takao
Takayanagi, Ryoichi
Ohnaka, Keizo
Source
Journal of Nutrition and Metabolism
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-05
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Objective.
Observational studies have shown a protective association between coffee consumption and type 2 diabetes mellitus whereas caffeine or caffeinated coffee acutely deteriorates glucose tolerance.
We investigated the effects of chronic drinking of instant coffee on glucose and insulin concentrations during a 75 g oral glucose tolerance test.
Methods.
Overweight men with a mild-to-moderate elevation of fasting plasma glucose were randomly allocated to a 16-week intervention of consuming 5 cups of caffeinated (n=17) or decaffeinated (n=15) instant coffee per day or no coffee (n=13).
Results.
The caffeinated coffee group showed statistically significant decreases in the 2-hour concentrations and the area under the curve of glucose while neither decaffeinated coffee nor coffee group showed such a change.
Waist circumstance decreased in the caffeinated coffee group, increased in the decaffeinated coffee group, and did not change in the noncoffee group (P=0.002).
With adjustment for the change in waist circumference, caffeinated and decaffeinated coffee consumption were associated with a modest decrease in the postload glucose levels.
Conclusion.
Both caffeinated and decaffeinated coffee may be protective against deterioration of glucose tolerance.
American Psychological Association (APA)
Ohnaka, Keizo& Ikeda, Mizuko& Maki, Takako& Okada, Tomoko& Shimazoe, Takao& Adachi, Masahiro…[et al.]. 2012. Effects of 16-Week Consumption of Caffeinated and Decaffeinated Instant Coffee on Glucose Metabolism in a Randomized Controlled Trial. Journal of Nutrition and Metabolism،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-454553
Modern Language Association (MLA)
Ohnaka, Keizo…[et al.]. Effects of 16-Week Consumption of Caffeinated and Decaffeinated Instant Coffee on Glucose Metabolism in a Randomized Controlled Trial. Journal of Nutrition and Metabolism No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-454553
American Medical Association (AMA)
Ohnaka, Keizo& Ikeda, Mizuko& Maki, Takako& Okada, Tomoko& Shimazoe, Takao& Adachi, Masahiro…[et al.]. Effects of 16-Week Consumption of Caffeinated and Decaffeinated Instant Coffee on Glucose Metabolism in a Randomized Controlled Trial. Journal of Nutrition and Metabolism. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-454553
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-454553