Diabetes Care, Vol 9, Issue 3 250-254, Copyright © 1986 by American Diabetes Association

ARTICLES

Comparison of plasma glucose, serum insulin, and C-peptide responses to three isocaloric breakfasts in non-insulin-dependent diabetic subjects

S Colagiuri, JJ Miller, JL Holliday and E Phelan

While differences in glucose and insulin responses to specific carbohydrate foods have been reported, few data are available for mixed meals incorporating such foods. This study compared the plasma glucose (PG), serum insulin (SI), and C-peptide (CP) responses to three different isocaloric test breakfasts given in random order to eight insulin-treated non-insulin-dependent diabetes mellitus (NIDDM) patients. The test meals were selected from a hospital food exchange list and contained similar quantities of carbohydrate, protein, fat, and dietary fiber. The postprandial PG, SI, and CP responses to two of the test breakfasts (meal A: eggs, toasted wholemeal bread, orange juice, margarine, and milk; meal B: wheatflake biscuits, toasted wholemeal bread, milk, and margarine) were similar (meal A: 104.3 +/- 23.0 mg X h X dl-1, 5996 +/- 1108 microU X min X ml-1, and 89.8 +/- 25.4 pmol X min X ml-1, respectively; meal B: 104.9 +/- 21.6 mg X h X dl-1, 6268 +/- 1161 microU X min X ml-1, and 99.8 +/- 26.4 pmol X min X ml-1, respectively). Meal C, consisting of toasted muesli and skim milk, produced smaller glycemic and insulin responses (46.8 +/- 8.8 mg X h X dl-1; P less than .02, and 4369 +/- 700 microU X min X ml-1; P less than .05, respectively) than meals A and B and less endogenous insulin secretion (CP response 62.8 +/- 19.9 pmol X min X ml-1; P less than .05 compared with meal A, NS compared with meal B).(ABSTRACT TRUNCATED AT 250 WORDS)
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