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Long‐term black‐eye pea intake reduces fasting plasma glucose values in generally healthy, mildly insulin resistant adults
Author(s) -
Hutchins Andrea,
Winham Donna,
Vodehnal Ashley,
Johnston Carol
Publication year - 2006
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.20.4.a430-c
Subject(s) - medicine , glycemic , crossover study , placebo , insulin , hemoglobin , plasma glucose , type 2 diabetes , endocrinology , diabetes mellitus , washout , zoology , biology , alternative medicine , pathology
This study examined the effects of long‐term, 8‐week, daily intake of ½ cup pinto beans (PB) or ½ cup black‐eye peas (BEP) on risk factors for type 2 diabetes mellitus (DM) in generally healthy, mildly insulin resistant adults compared to ½ cup carrots (CAR), a placebo. A placebo‐controlled, crossover 3x3 block design was utilized, in which 10 participants received each treatment over three separate 8‐week periods with an approximate 2‐week washout in between treatments. Fasting blood samples collected at the beginning and end of each 8‐week period were analyzed for fasting plasma glucose and insulin and hemoglobin A1C. A significant treatment‐by‐time effect impacted plasma glucose after 8 weeks (p=0.043). Paired t‐tests indicated that the black‐eye peas (p=0.043) were the treatment responsible for this glucose‐lowering effect [fasting glucose: BEP pre‐treatment = 93.2 +/− 5.6 mg/dL (mean +/− SEM), BEP post‐treatment = 88.5 +/− 4.3 mg/dL; PB pre‐treatment = 91.0 +/− 5.5 mg/dL, PB post‐treatment = 93.1 +/− 5.5 mg/dL; CAR pre‐treatment = 94.4 +/− 5.1 mg/dL, CAR post‐treatment = 94.4 +/− 4.9 mg/dL], There was no significant difference in hemoglobin A1C values over the 8‐week intervention periods. Based on these results, black‐eye pea intake should be encouraged to improve short‐term glycemic control in individuals at risk for type 2 DM. Research support was provided by the Michigan State University/Bean‐Cowpea CRSP and Beans for Health Alliance.