Abstract
Introduction: Diabetes is a global health problem. Dietary factors are important and potentially modifiable risk factors, to prevent and control of diabetes. One of these diets is the dietary approaches to stop hypertension (DASH) diet which may be influenced by risk factors for type 2 diabetes. Objectives: The main aim of this study was to investigate the effects of DASH diet versus usual dietary advice (UDA) on glycemic indices.Patients and Methods: In this randomized controlled clinical trial 44 healthy obese and overweight women were randomly assigned to the DASH diet or the UDA for 12 weeks. The fasting blood sugar (FBS), serum fasting insulin (FINS) level, and homeostasis model of insulin resistance (HOMA-IR) were measured at the first and end of the study. Results: There were no significant differences in any glycemic indices between two groups, however, FBS reduced in both DASH and UDA groups. Additionally, HOMA-IR and fasting concentration of insulin increased in UDA group. Conclusion: There was not the difference between recommendations to follow DASH dietary pattern or UDA in glycemic control.
Highlights
The result of this study suggested that dietary approaches to stop hypertension (DASH) diet cannot improve glycemic markers compared to usual dietary advice (UDA)
Study procedures Participants were randomly assigned to the DASH diet or UDA based on random sequencing created in SPSS for 12 weeks
The result of this study reveals fasting blood sugar (FBS) reduced in both DASH and UDA groups that are in a good agreement with the result of studies showed DASH diet can decrease FBS [13]
Summary
Obesity has affected an approximated 300 million people in the worldwide [1]. Its prevalence is expanding in both developed and developing countries. The World Health Organization (WHO) has reported 44% of the diabetes is due to be overweight and obesity [4] Both obesity and type 2 diabetes are related to insulin resistance, in normal conditions, some obese, insulin-resistant individuals do not become hyperglycemia, because of increasing insulin release to overcome the reduced efficiency of insulin action by the pancreatic islet β-cells, glucose tolerance remains normal [5]. Dietary factors are important and potentially modifiable risk factors to prevent and control of diabetes [6]. One of this diet which may be influenced on type 2 diabetes is the dietary approaches to stop hypertension (DASH). The effect of the DASH diet on the risk of type 2 diabetes and insulin sensitivity is controversial
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