A flexible, low-glycemic index Mexican-style diet in overweight and obese subjects with type 2 diabetes improves metabolic parameters during a 6-week treatment period

被引:78
作者
Jimenez-Cruz, A
Bacardi-Gascon, M
Turnbull, WH
Rosales-Garay, P
Severino-Lugo, I
机构
[1] Univ Autonoma Baja California, Sch Med, Nutr Program, Mexicali 21100, Baja California, Mexico
[2] Life Univ, Dept Nutr, Marietta, GA USA
关键词
D O I
10.2337/diacare.26.7.1967
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
OBJECTIVE - The aim of this study was to compare the effects of a flexible lower- and higher-glycemic index (GI) Mexican-style diet on biochemical data and BMI during a 6-week treatment period. RESEARCH DESIGN AND METHODS - This study was a randomized, crossover design of two 6-week periods with a 6-week washout period between treatments. Subjects with type 2 diabetes (n = 36) with a BMI >25 kg/m(2) were selected. Fourteen subjects completed the study with eligible dietary records. Dietary instruction was provided on flexible diets with both a high and low GI. Fasting venous blood samples were taken at the start and finish of each dietary period, and biochemical data were analyzed. Multi- and univariate one-factor repeated-measures ANOVA were used to compare biochemical data. RESULTS - Glycemic load and GI were lower during the low-GI diet, and dietary fiber was lower during the high-GI diet. The participants in the low-GI period consumed significantly fewer carbohydrates, such as white-wheat bread, white long-grain rice, potatoes, high-GI fruits and carrots, and more carbohydrates, such as pinto beans, whole-meal wheat bread, and low-Gi fruits than did participants in the high-GI period. There were no differences in the amount of I carbohydrates consumed, such as corn tortillas and dairy products. At the end of the study periods, Ale was improved on the low- compared with the high-GI diet (P < 0.008). CONCLUSIONS - We conclude that a low-GI diet, containing Mexican-style foods, may help to improve the metabolic control in type 2 obese diabetic subjects during a 6-week period.
引用
收藏
页码:1967 / 1970
页数:4
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