HOME > EDICIONES > Año 2005, Volumen 55 - Número 4
Trabajos de Investigación
Relationship between calcium intake and body mass index in adolescents
Luana Caroline dos Santos1; Lígia Araújo Martini2; Isa de Pádua Cintra3; Mauro Fisberg4
1.- MSc. Nutrition Department, School of Public Health - Sao Paulo University.
2.- PhD, Assistant Professor of the Nutrition Department, School of Public Health - Sao Paulo University.
3.- PhD, Associate Professor of Federal University of Sao Paulo
4.- M D, PhD, Associate Professor of Federal University of Sao Paulo
Correspondence:
Lígia Araújo Martini
Departamento de Nutrição, Faculdade de Saúde Pública
Universidade de São Paulo
Av. Dr Arnaldo, 715
São Paulo/SP, Brazil, CEP: 01246-904.
lmartini@usp.br
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SUMMARY
Relationship between calcium intake and body mass index in adolescents
Epidemiologic and experimental data support the possibility that dietary calcium intake plays a role in human body weight regulation. The aim of the present study was to evaluate calcium intake and its relationship with body mass index (BMI) in adolescents. Weight, height, 3-day food record and a food frequency questionnaire were collected among all adolescents participants at the Outpatient Clinic for Adolescents at the Federal University of Sao Paulo between 2001 and 2003. The statistical analysis comprised Chi-square, Student's T-test, Pearson correlation and linear regression. One-hundred and twenty-one adolescents were studied (62.8% female), with a mean age of 14.9 ±2.2 years old. Mean energy and calcium intakes were 1729.9±557.8 kcal/day and 598.2±287.9 mg/day respectively, with no significant statistical differences between sex or age. Almost ninety-eight percent of adolescents presented a mean calcium intake lower than proposed values. Calcium intake adjusted for energy presented a significant negative correlation with body weight (r=-0.194, p=0.03) and BMI (r=-0.185, p=0.04). Furthermore, adolescents in the lowest quartile of calcium intake presented higher BMI (29.7±7.4 kg/m2) than adolescents in the highest calcium quartile. These results indicated a dietary calcium intake lower than recommendations for this life stage, and a contribution of this mineral in the body mass index.
Key words: adolescents, calcium, body weight, obesity
Recibido: 30/05/2005
Aceptado: 29/12/2005
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PRIVACIDAD | ACCESIBILIDAD
ALAN-VE ISSN 0004-0622 - Depósito Legal: pp 199602DF83
Sociedad Latinoamericana de Nutrición
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