Dietary calcium utilization among a group of Spanish boys aged 11-14 years on their usual diets
J. physiol. biochem
; 62(1): 9-16, ene. 2006. tab, graf
Article
en En
| IBECS
| ID: ibc-052653
Biblioteca responsable:
ES1.1
Ubicación: ES1.1 - BNCS
RESUMEN
No disponible
ABSTRACT
Adolescence constitutes a period of nutritional vulnerability due to increaseddietary requirements for growth and development and special dietary habits. A pilottrial was performed to evaluate the dietary calcium utilization among a sample ofSpanish boys on their usual diets, in which the calcium intake and consumption ofdairy products were as well examined. Nutrient and food intake was recorded usinga 24-h dietary recall and a 2-d food consumption record for 21 subjects aged 11-14years. Dietary calcium utilization was assessed by means of calcium intake in foodand calcium output in faeces and urine as measured by flame atomic absorption spectrophotometry.Overall intake of dairy products was 399.3±22.1 g/d, and the singlemost consumed item was milk (72% of the total). An inverse relationship was foundbetween dairy product consumption at breakfast (55% of the total) and BMI(p=0.016, r=-0.5168). Dairy products contributed the majority of dietary calcium(66.9%). Mean calcium intake was 881.7±39.9 mg/d, 88% of the recommended valuefor Spanish adolescents. Net calcium absorption (271.7±51.7 mg/d) and retention(170.6±50.9 mg/d) seemed not to be sufficient to meet growth demands duringpuberty. The results shown that adolescents of the study absorbed 31% of dietarycalcium and retained nearly 20% of the total intake, but dietary calcium intake andconsumption of dairy products failed to meet recommended values. Optimizing calciumintake is of crucial importance among adolescents, to maximize calcium retentionand to help prevent osteoporosis in later life
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Colección:
06-national
/
ES
Base de datos:
IBECS
Asunto principal:
Calcio de la Dieta
/
Dieta
Límite:
Adolescent
/
Child
/
Humans
/
Male
País/Región como asunto:
Europa
Idioma:
En
Revista:
J. physiol. biochem
Año:
2006
Tipo del documento:
Article