This subproject is one of many research subprojects utilizing theresources provided by a Center grant funded by NIH/NCRR. The subproject andinvestigator (PI) may have received primary funding from another NIH source,and thus could be represented in other CRISP entries. The institution listed isfor the Center, which is not necessarily the institution for the investigator.The treatment of pediatric obesity supported by the medical community is a moderate restriction in calories by modifying intake of fat and simple sugars, along with an increase in energy expenditure through more physical activity. However, this approach is associated with only limited success. As a result, overweight children and adolescents are seeking alternative approaches to weight management, such as diets that modify the type and amount of carbohydrates. However, at this time there is limited data on the safety and efficacy of these diets, particularly with younger children. This study is a controlled clinical trial that compares the safety and efficacy of a low carbohydrate and low glycemic load diets to a more standard dietary intervention for the management of pediatric obesity (i.e. portion-controlled, moderate fat, high carbohydrate diet). This study will involve 150 overweight children (ages 7 to 12) who will be randomly assigned to one of the three diet groups for 12 months. The effects of each diet will be determined by measuring changes in anthropometric measures (body weight, height, body mass index, waist circumference, body composition), other cardiovascular risk factors (blood pressure, fasting lipid profile, fasting glucose and insulin, and inflammatory markers of cardiovascular disease), and measures of psychological well-being and mental status. The results of this study will provide needed information to the public in their quest for safe, effective, and health-promoting weight management strategies for obese children. Such information is vital if we are to address the obesity epidemic in the United States.
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