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Pinto beans as part of a normal diet do not improve glycemic control in adults with type 2 diabetes
Author(s) -
Hutchins Andrea,
Winham Donna
Publication year - 2011
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.25.1_supplement.971.24
Subject(s) - postprandial , glycemic , medicine , meal , type 2 diabetes , diabetes mellitus , context (archaeology) , metformin , endocrinology , zoology , biology , paleontology
This study examined the impact of daily consumption of ½ c pinto beans, compared to a control (½ c green beans), on changes in fasting glucose, postprandial glucose and HbA1c concentrations in men and women with type 2 diabetes (controlled by diet or metformin). Although some health professionals are promoting the benefits of dry beans for glucose control, confusion exists regarding the glycemic properties of dry beans in the context of a normal diet. After a baseline wash‐in period, 16 subjects were randomly assigned to 2 treatment periods [control period and pinto beans], each 12‐weeks in duration with a 4‐week wash‐out period. Eight subjects completed both treatment periods. During the wash‐in period and interventions, on days a diet record was kept (28 total days), subjects measured a postprandial capillary glucose concentration using a glucometer (provided by study) 1 hour after the meal during which the pinto beans or control were consumed. Before and after each intervention, subjects provided a fasted venous blood sample for glucose and HbA1c analyses. There were no statistically significant changes (p<0.05) in fasting glucose, HbA1c or average postprandial glucose values between the 2 interventions. The results of this study did not demonstrate improved glycemic control when pinto beans were incorporated into the normal diet of men and women with type 2 diabetes. Research was supported by the US Dry Bean Council.