Sodium and potassium urinary excretion and dietary intake: A cross-sectional analysis in adolescents

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Gonçalves, Carla (Author) SPUP; Abreu,Sandra (Author) Other; Padrão, Patrícia (Author) FCNAUP; Pinho, Olívia (Author) FCNAUP; Graça, Pedro (Author) FCNAUP; Breda, João (Author) Other; Santos, Rute (Author) Other; Moreira, Pedro (Author) FCNAUP

Journal

Title: Food and Nutrition Research

Vol. 60 (art.º - 29442)

ISSN: 1654-6628

Publisher: Swedish Nutrition Foundation

Indexing

ISI Web of Knowledge - 31 Citations

Scopus - 32 Citations

Pubmed / Medline

Scientific classification

CORDIS: Health sciences

FOS: Medical and Health sciences

Other information

Authenticus ID: P-00K-FQF

DOI: 10.3402/fnr.v60.29442

Abstract (EN): Background: 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 (p0.295). 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.

Language: English

Type (Professor's evaluation): Scientific

Notes: <a href="http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS&DestLinkType=FullRecord&KeyUT=000375879800001">Indexado na ISI Web of Science</a> <a href="https://www.ncbi.nlm.nih.gov/pubmed/27072344">Indexado na Pubmed</a> <a href="http://www.scopus.com/record/display.url?eid=2-s2.0-84979276930&origin=inward">Indexado na Scopus</a>

No. of pages: 11