Method: randomized controlled trial.
1) In the first study in the United States, 40 subjects with poorly controlled type 2 diabetes underwent eight sessions in 10 months during which they were shown a low GI diet or recommendations similar to those provided by the American Diabetes .
2) In the second study conducted in Japan, 39 patients with type 2 diabetes underwent four sessions in three months during which they were shown a low GI diet or guidelines provided by the Japan Society of Diabetology.
Results 1) In the U.S. study, no statistically significant differences were found between the two groups in mean HbA1c or to 6 or 12 months, although in the low GI have been observed minor changes in antidiabetic therapy (odds ratio = 0.26, p = 0.01).
2) In the Japanese study, the reduction in HbA1c was greater than in controls - see the chart.
Bibliography
1) Y. But et al. A randomized Clinical Trial Comparing Low-glycemic index versus ADA dietary education Among individuals with type 2 diabetes. Nutrition. 2008 Jan; 24 (1) :45-56
2) Amano Y. et al. Glycemic index-based nutritional education Improves blood glucose control in Japanese adults: a randomized controlled trial. Diabetes Care. 2007 Jul; 30 (7) :1874-6.
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