Research
Effects of caffeinated and decaffeinated coffee on biological risk factors for type 2 diabetes: a randomized controlled trial
- † Equal contributors
1 Department of Nutrition, Harvard School of Public Health, Boston, MA, USA
2 Division of Endocrinology, Diabetes & Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
3 Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
4 Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA
5 Section of Endocrinology, Boston VA Healthcare System, Harvard Medical School, Boston, MA, USA
6 Department of Environmental Health, Harvard School of Public Health, Boston, MA, USA
Nutrition Journal 2011, 10:93 doi:10.1186/1475-2891-10-93
Published: 13 September 2011Additional files
Additional file 1:
Additional figures and table entitled Figure S1, Figure S2, Figure S3 and Table S1. Figure S1. Flow of participants through the study.; Figure S2. Compliance at 6-week visit determined from non-fasting serum caffeine concentrations. Shown are mean ± standard error values for caffeine and metabolites concentrations. Regular coffee (n = 14), Decaffeinated coffee (n = 13), No coffee (n = 14).; Figure S3. Association between change in adiponectin concentrations and change in 2-hour glucose concentrations during the study. Shown is a scatterplot of participant values for change from baseline at Week 8 in 2-hour glucose versus change in adiponectin including the simple linear regression line.; and Table S1. Body composition, lifestyle, and diet by coffee treatment group at baseline and the end of the trial.
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