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Evidence-Based Complementary and Alternative Medicine
Volume 2013, Article ID 851267, 11 pages
Research Article

Antihyperglycemic Effects of Short Term Resveratrol Supplementation in Type 2 Diabetic Patients

1Department of Endocrine and Metabolic Diseases, The Persian Gulf Tropical Medicine Research Center, Bushehr, University of Medical Sciences, Bushehr 7514763448, Iran
2Heart Failure Research Laboratory, Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Research Centre, Winnipeg, MB, Canada R2H 2A6
3Agriculture and Agri-Food Canada, Winnipeg, MB, Canada R3T 2M9
4Department of Physiology, University of Manitoba, Winnipeg, MB, Canada R3E 0J9

Received 13 June 2013; Accepted 25 July 2013

Academic Editor: MinKyun Na

Copyright © 2013 Ali Movahed et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The objective of this study was to examine the effectiveness of resveratrol in lowering blood glucose in the presence of standard antidiabetic treatment in patients with type 2 diabetes, in a randomized placebo-controlled double-blinded parallel clinical trial. A total of 66 subjects with type 2 diabetes were enrolled in this study and randomly assigned to intervention group which was supplemented with resveratrol at a dose 1 g/day for 45 days and control group which received placebo tablets. Body weight, blood pressure, fasting blood glucose, haemoglobin A1c, insulin, homeostatic assessments for insulin resistance, triglycerides, total cholesterol, low density lipoprotein, high density lipoprotein, and markers of liver and kidney damage were measured at baseline and after 45 days of resveratrol or placebo supplementation. Resveratrol treatment significantly decreased systolic blood pressure, fasting blood glucose, haemoglobin A1c, insulin, and insulin resistance, while HDL was significantly increased, when compared to their baseline levels. On the other hand, the placebo group had slightly increased fasting glucose and LDL when compared to their baseline levels. Liver and kidney function markers were unchanged in the intervention group. Overall, this study showed that resveratrol supplementation exerted strong antidiabetic effects in patients with type 2 diabetes.