低血糖负荷饮食在糖耐量异常患者中的应用及效果评价

目的探讨低血糖负荷(low glycemic load,LGL)饮食在糖耐量异常(impaired glucose tolerance,IGT)患者饮食教育中的应用效果。方法便利抽样法选取IGT患者100例,用抽签法将患者随机分为试验组和对照组各50例。对照组患者采用传统食物交换份法,试验组患者在食物交换份法的基础上增加LGL饮食教育干预(具体方法包括社区分期授课、编制个体化食谱、门诊指导、电话咨询、发放相关教育资料等),干预后6个月比较两组患者的血液生化指标及人体测量学指标。结果在LGL饮食教育干预后,试验组患者的餐后2h血糖、糖化血红蛋白、三酰甘油、总胆固醇、体质指数和腰围等均低于对照组,差异均有统计学意义(均P<0.05)。结论与传统食物交换份法相比,对IGT患者进行LGL饮食干预,能更有效地改善患者的血糖、血脂和体质指数。

Application and Evaluation of Low Glycemic-load Food in Patients with Impaired Glucose Tolerance

Objective To explore the application effect of low glycemic-load（LGL） food in dietary education of patients with impaired glucose tolerance（IGT）. Methods A total of 100 IGT patients were selected by the inclusion criteria,and they were randomly assigned into two groups averagely. The patients in the control group received diet education of traditional food exchange service, while those in the experimental group received diet education of LGL based on the food exchange service. All the patients received 6-month diet education by the means of community education, establishing individual recipes,out-patient clinic guid- ance, telephone consultation, disseminating educational materials, and then the outcomes were evaluated. Results The values of postprandial 2 h-PBG, HbAle, TG, TC, BMI and waistline in the experimental group were significantly lower thant those in the control group（P〈0.05）. Conclusion Compared with the food exchange service,LGL dietary intervention for IGT pateints is more effective in improving the blood sugar,lipids and BMI.