社区2型糖尿病患者膳食及维生素C营养状况调查

目的 了解2型糖尿病患者膳食及维生素C的营养状况，为糖尿病防治中抗氧化营养素的补充提供参考。方法 对上海市瑞金街道社区的2型糖尿病患者（2型糖尿病组，n=68）和健康人群（对照组，n=136）进行膳食营养调查和4 h尿中维生素C负荷试验。结果 4 h尿中维生素C负荷试验结果显示：2型糖尿病组中10.3%的患者维生素C营养状况处于缺乏状态，显著高于对照组的0.7%，差异有统计学意义（P<0.05）。膳食调查结果显示：两组人群每日维生素E平均摄入量均高于推荐标准（14 mg），但组间比较差异无统计学意义（P>0.05）；两组人群的维生素C摄入量比较，差异也无统计学意义（P>0.05）。结论 2型糖尿病患者的维生素C营养水平较低，在治疗过程中应重视维生素C等抗氧化营养素的补充。

Survey on diet and vitamin C nutrition status in patients with type 2 diabetes in community

Objective To investigate the diet and vitamin C nutrition status in patients with type 2 diabetes, and provide reference for the supplement of antioxidant nutrients in the treatment of diabetes. Methods Sixty-eight patients with type 2 diabetes (type 2 diabetes group) and 136 healthy people (control group) from Shanghai Ruijin Community were selected, diet nutrition was investigated, and 4-h vitamin C urinary load test was conducted. Results The results of 4-h vitamin C urinary load test suggested that 10.3% of patients in type 2 diabetes group were in insufficient status of vitamin C, which was significantly higher than that in control group (0.7%)(P<0.05). Diet survey demonstrated that daily vitamin E intake in both groups was higher than the recommended level (14 mg), but there was no significant difference between two groups (P>0.05). Besides, there was no significant difference in vitamin C intake between two groups (P>0.05). Conclusion Patients with type 2 diabetes may be in poor nutrition status of vitamin C, and supplement of antioxidant nutrients including vitamin C should be attached great importance in the treatment of diabetes.