The correlation of dietary fiber intake with nutritional status among adolescents of junior high school in Medan, North Sumatera Indonesia Shifa Yuliani Rambe 1* , Winra Pratita 2 , Johannes Harlan Saing 3 , Arlinda Sari Wahyuni 4 , Rita Evalina 5 , Wisman Dalimunthe 6 1 shifayuliani.slr@gmail.com 1 Resident of Department of Child Health, Medical School, Universitas Sumatera Utara/ Universitas Sumatera Utara Hospital/ H. Adam Malik Hospital, Jl. dr. Mansyur No. 5, Medan 20155, Indonesia 2 Pediatric Nutritional and Metabolic Disease of Department of Child Health, Medical School, Universitas Sumatera Utara/ Universitas Sumatera Utara Hospital/ H. Adam Malik Hospital, Jl. dr. Mansyur No. 5, Medan 20155, Indonesia 3 Pediatric Neurology of Department of Child Health, Medical School, Universitas Sumatera Utara/ Universitas Sumatera Utara Hospital/ H. Adam Malik Hospital, Jl. dr. Mansyur No. 5, Medan 20155, Indonesia 4 Professor of Public Health Medicine, Medical School, Universitas Sumatera Utara/ Universitas Sumatera Utara Hospital/ H. Adam Malik Hospital, Jl. dr. Mansyur No. 5, Medan 20155, Indonesia 5 Pediatric Alergy and Immunology of Department of Child Health, Medical School, Universitas Sumatera Utara/ Universitas Sumatera Utara Hospital/ H. Adam Malik Hospital, Jl. dr. Mansyur No. 5, Medan 20155, Indonesia 6 Pediatric Respirology of Department of Child Health, Medical School, Universitas Sumatera Utara/ Universitas Sumatera Utara Hospital/ H. Adam Malik Hospital, Jl. dr. Mansyur No. 5, Medan 20155, Indonesia Abstract Background : The prevalence of obesity and overweight are increasing in adolescents. It can be risk factor of obesity , chronic disease such as diabetes, cardiovascular disease in adulthood. The risk factor of obesity and overweight are high calorie intake and lack of physical activity. Dietary fiber can be an alternative because it is proven to be able to lose weight because it has fewer calories and have filling effect because it has a high viscosity. There are less study benefit of dietary fiber intake in nutritional status in adolescent. Objective: The aim of this study was to investigate the correlation of dietary fibre and the other factors that caused overweight and obesity among adolescents of Junior high school. Methods: A cross sectional study with total of 102 subjects, including 42% boys and 58,8% girls aged 12-16 with normal weight, overweight and obesity. Dietary fiber information was reported using the food recall for a week and conversion it to self nutrition data. The nutritional status was assessed on the basis of body mass and height measurements with CDC 2000 curve. Data analysis used chi square and logistic regression. Results: There was correlation between dietary fiber intake and nutritional status (p < 0,001) (p < 0,001) with Rasio Prevalence 2,830 (CI 95% = 1,845-4,341). But snack consumption have more correlation with p < 0,001 with Rasio Prevalence 4,782 (IK 95% = 2,075-11,018). Conclusion: The intake of dietary fibre was associated with nutritional status in adolescent, but snack consumption have more correlation. Key word : dietary fiber , nutritional status, adolescent Introduction Dietary fiber has played an important role in diet and health rules since ancient times. A high-fiber diet can help maintain a healthy gut microbiota, colon relaxation and cardiometabolic processes. Adequate fiber diet, is useful for reducing the risk of chronic cardiometabolic disease, weight control so that it can improve health (Dreher ML, et al., 2018). Obesity is an example of a weight control disorder that has become a global epidemic and its incidence is still increasing both in developed and developing countries, although the increase in the prevalence of obesity in children in developing countries is still not as high as in children in developed countries (Riset 265 www.ijrp.org IJRP 2021, 91(1), 265-271; doi:.10.47119/IJRP1009111220212613