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A low-glycemic index diet in the treatment of pediatric obesity
L E Spieth1, J D Harnish, C M Lenders
1Department of Medicine, Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA.
Insights
A low-glycemic index (GI) diet significantly reduced body mass index (BMI) and weight in obese children compared to a standard reduced-fat diet. This dietary approach shows promise for pediatric obesity management.
Area of Science:
- Pediatric Endocrinology
- Nutritional Science
- Public Health
Background:
- Conventional obesity treatments in children often yield suboptimal results.
- Effective dietary strategies for pediatric obesity management are crucial.
- Obesity in children poses significant long-term health risks.
Purpose of the Study:
- To compare the effectiveness of a low-glycemic index (GI) diet versus a standard reduced-fat diet for pediatric obesity.
- To evaluate changes in body mass index (BMI) and body weight in obese children.
- To assess the impact of dietary interventions on pediatric weight management.
Main Methods:
- Retrospective cohort study involving 107 obese children in an academic medical center.
- Comparison of a low-GI diet group (n=64) with a reduced-fat diet group (n=43).
- Analysis of changes in BMI and body weight from baseline to final clinic visit.
Main Results:
- The low-GI diet group showed significantly greater reductions in BMI ( -1.53 kg/m² vs. -0.06 kg/m²) and body weight (-2.03 kg vs. +1.31 kg) compared to the reduced-fat diet group.
- These findings remained significant after adjusting for multiple confounding factors.
- A higher proportion of children in the low-GI group achieved a clinically meaningful decrease in BMI (≥3 kg/m²).
Conclusions:
- A low-GI diet represents a promising alternative for treating pediatric obesity.
- Further long-term randomized controlled trials are warranted to confirm these findings.
- Dietary interventions focusing on glycemic index may be beneficial for childhood obesity prevention and treatment.
Context:
Conventional dietary approaches for the treatment of obesity have generally yielded disappointing results.
Objective:
To examine the effects of a low-glycemic index (GI) diet compared with a standard reduced-fat diet in the management of pediatric obesity.
Design:
Retrospective cohort study of children attending an outpatient pediatric obesity program from September 1997 to December 1998.
Setting:
Academic medical center.
Participants:
One hundred seven obese but otherwise healthy children.
Main Outcome Measures:
Changes in body mass index (BMI [calculated as weight in kilograms divided by the square of height in meters]) and body weight from first to last clinic visit.
Results:
A total of 64 patients received the low glycemic index diet and 43 received the reduced-fat diet for 4.3 vs 4.2 months' mean duration of follow-up, with 3.3 vs 3.3 mean number of visits, respectively. Body mass index (-1.53 kg/m(2) [95% confidence interval, -1.94 to -1.12] vs -0.06 kg/m(2) [-0.56 to + 0. 44], P<.001) and body weight (-2.03 kg [95% confidence interval -3. 19 to -0.88] vs +1.31 kg [ -0.11 to + 2.72], P<.001) decreased more in the low-GI group compared with the reduced-fat group. In multivariate models, these differences remained significant (P<.01) after adjustment for age, sex, ethnicity, BMI or baseline weight, participation in behavioral modification sessions, and treatment duration. Significantly more patients in the low-GI group experienced a decrease in BMI of at least 3 kg/m(2) (11 kg/m(2) [17. 2%] vs. 1 kg/m(2) [2.3%], P =.03).
Conclusions:
A low-GI diet seems to be a promising alternative to standard dietary treatment for obesity in children. Long-term randomized controlled trials of a low-GI diet in the prevention and treatment of obesity are needed.