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Abstract
Background Dietary antioxidant intake has been suggested to protect against oxidative damage and related clinical complications. The aim of the present study was to assess the potential relationships between the dietary total antioxidant capacity (TAC) and obesity-related features in children and adolescents.
Materials and methods Anthropometric variables from 369 children and adolescents were measured (184 obese and 185 control). A validated food-frequency questionnaire was used to calculate the TAC and the daily nutrient and energy intake.
Results Dietary TAC showed positive associations with fiber, folic acid, magnesium, and vitamins A, C and E. The body mass index, standard deviation score of body mass index and total body fat were inversely associated with dietary TAC only in obese subjects.
Conclusion These data suggest that dietary TAC may be a potential indicator of the risk to develop obesity-related features and could be considered a useful method in assessing antioxidant intake.
Acknowledgements
The authors are grateful for the participation of subjects and their families and the collaboration of the medical teams from the Virgen del Camino Hospital, University Clinic and Health Centre of Barañain.
Declaration of interest: The present work has been supported by Ibercaja, CIBERobn, which is an initiative of the ISC-III (CB06/03/1017), the Línea Especial about Nutrition, Obesity and Health (University of Navarra LE/97) and the Asociación de Amigos fellowships scheme of the University of Navarra. The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.