Plasma concentrations of retinol in obese children and adolescents: relationship to metabolic syndrome components

Objective: To evaluate obese children and adolescents' retinol plasma levels and to correlate them with metabolic syndrome components.Methods: Cross-sectional study with 61 obese children and adolescents (body mass index Z score - ZBMI>+2). Pubertal development, arterial blood pressure, body weight and height for nutritional classification and waist circumference were obtained. A 15mL blood sample was collected (after a 12-hour fasting in a low luminosity room) for retinol determination (cut-off inadequate if