Affiliation:
1. Human Nutrition Unit, Department of Biochemistry, University of Sydney; and the Department of Diabetes and Metabolism, Prince of Wales Hospital Randwick, New South Wales, Australia
Abstract
Objective
To compare high- and low-glycemic index (GI) diets in the treatment of non-insulin-dependent diabetes mellitus (NIDDM).
Research Design and Methods
Sixteen subjects with well-controlled NIDDM and normal lipid profile, 10 of whom continued oral hypoglycemic medication, participated in the study. A diet that emphasized low-GI foods (e.g., porridge, pasta) was compared with a high-GI diet (e.g., processed cereals, potatoes). The GI of the low-GI diet was 15% lower than the high-GI diet (77 ± 3 vs. 91 ± 1) but otherwise similar in macronutrient composition and fiber, as determined by a 4-day weighed record. The diets were instituted under instruction from a dietitian who visited subjects at home on a weekly basis. Body weight was maintained within 1–2 kg.
Results
Glycemic control was improved on the low-GI diet compared with the high-GI diet (statistically significant findings, P < 0.05). Mean glycosylated hemoglobin at the end of the low-GI diet was 11% lower (7.0 ± 0.3%) than at the end of the high-GI diet (7.9 ± 0.5%), and the 8-h plasma glucose profile was lower (area under the curve above fasting 128 ± 23 vs. 148 ± 22 mmol.h-1.L-1, respectively). Mean fasting plasma glucose, total cholesterol triglycerides, and lipoproteins did not show important differences.
Conclusions
A low-GI diet gives a modest improvement in long-term glycemic control but not plasma lipids in normolipidemic well-controlled subjects with NIDDM.
Publisher
American Diabetes Association
Subject
Advanced and Specialized Nursing,Endocrinology, Diabetes and Metabolism,Internal Medicine
Cited by
257 articles.
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