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Browsing CI - DGS - Artigos Científicos by Subject "Adolescentes"
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- Beverages intake and hydration status in adolescentsPublication . Gonçalves, C.; Padrão, P.; Abreu, S.; Graça, P.; Moreira, P.Introduction: Type and quantity of beverages intake among adolescents may influence their hydration status. Objective: To evaluate the association between hydration status assessed by Free Water Reserve (FWR) and consumption of 5 types of beverages (water, milk, soft drinks, fruit juices and hot beverages). Conclusions: In this sample of participants, euhydrated adolescents ingest more water and hot beverages than those at risk of hypo-hydration.
- Sodium and potassium urinary excretion and dietary intake: a cross-sectional analysis in adolescentsPublication . Gonçalves, Carla; Abreu, Sandra; Padrão, Patrícia; Graça, Pedro; Breda, João; Moreira, Pedro; et alBackground: Hypertension is the leading cause for heart disease and stroke, for mortality and morbidity worldwide, and a high sodium-to-potassium intake ratio is considered a stronger risk factor for hypertension than sodium alone. Objective: This study aims to evaluate sodium and potassium urinary excretion, and assess the food sources of these nutrients in a sample of Portuguese adolescents. Design: A cross-sectional study with a sample of 250 Portuguese adolescents. Sodium and potassium excretion were measured by one 24-h urinary collection, and the coefficient of creatinine was used to validate completeness of urine collections. Dietary sources of sodium and potassium were assessed using a 24-h dietary recall. Results: Valid urine collections were provided by 200 adolescents (118 girls) with a median age of 14.0 in both sexes (p 0.295). Regarding sodium, the mean urinary excretion was 3,725 mg/day in boys and 3,062 mg/day in girls (pB0.01), and 9.8% of boys and 22% of girls met the World Health Organization (WHO) recommendations for sodium intake. Concerning potassium, the mean urinary excretion was 2,237 mg/day in boys and 1,904 mg/day in girls (pB0.01), and 6.1% of boys and 1.7% of girls met theWHOrecommendations for potassium intake. Major dietary sources for sodium intake were cereal and cereal products (41%), meat products (16%), and milk and milk products (11%); and for potassium intake, main sources were milk and milk products (21%), meat products (17%), and vegetables (15%). Conclusions: Adolescents had a high-sodium and low-potassium diet, well above the WHO recommendations. Health promotion interventions are needed in order to decrease sodium and increase potassium intake.