The effect of low glycemic index diet on body weight status and blood pressure in overweight adolescent girls: a randomized clinical trial.
- Author:
Mohammad Hossein ROUHANI
1
;
Roya KELISHADI
;
Mahin HASHEMIPOUR
;
Ahmad ESMAILLZADEH
;
Leila AZADBAKHT
Author Information
- Publication Type:Clinical Trial ; Original Article ; Randomized Controlled Trial
- Keywords: Glycemic index; obesity; blood pressure; adolescent; obese
- MeSH: Adolescent; Adult; Blood Pressure; Body Mass Index; Body Weight; Diet; Follow-Up Studies; Glycemic Index; Humans; Longitudinal Studies; Obesity; Overweight; Waist Circumference
- From:Nutrition Research and Practice 2013;7(5):385-392
- CountryRepublic of Korea
- Language:English
- Abstract: Although several studies have assessed the influence of the glycemic index on body weight and blood pressure among adults, limited evidence exists for the pediatric age population. In the current study, we compared the effects of low glycemic index (LGI) diet to the healthy nutritional recommendation (HNR)-based diet on obesity and blood pressure among adolescent girls in pubertal ages. This 10-week parallel randomized clinical trial comprised of 50 overweight or obese and sexually mature girls less than 18 years of age years, who were randomly assigned to LGI or HNR-based diet. Macronutrient distribution was equivalently prescribed in both groups. Blood pressure, weight and waist circumference were measured at baseline and after intervention. Of the 50 participants, 41 subjects (include 82%) completed the study. The GI of the diet in the LGI group was 42.67 +/- 0.067. A within-group analysis illustrated that in comparison to the baseline values, the body weight and body mass index (not waist circumference and blood pressure) decreased significantly after the intervention in both groups (P = 0.0001). The percent changes of the body weight status, waist circumference and blood pressure were compared between the two groups and the findings did not show any difference between the LGI diet consumers and those in the HNR group. In comparison to the HNR, LGI diet could not change the weight and blood pressure following a 10-week intervention. Further longitudinal studies with a long-term follow up should be conducted in this regard.
