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Comparison of serum concentration and dietary intake of alpha-tocopherol in a sample of urban and rural Costa Rican adolescents

Monge-Rojas, Rafael ; Alfaro Calvo, Thelma ; Nuñez Rivas, Hilda

Archivos latinoamericanos de nutrición, 2003-06, Vol.53 (2), p.165-171 [Periódico revisado por pares]

Venezuela: Sociedad Latinoamericana de Nutrición

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Título:
Comparison of serum concentration and dietary intake of alpha-tocopherol in a sample of urban and rural Costa Rican adolescents
Autor: Monge-Rojas, Rafael ; Alfaro Calvo, Thelma ; Nuñez Rivas, Hilda
Assuntos: Adolescent ; adolescentes ; adolescents ; alfa -tocoferol ; alpha -tocopherol ; alpha-Tocopherol - administration & dosage ; alpha-Tocopherol - blood ; Body Mass Index ; consumo dietético ; Costa Rica ; Diet ; Diet Surveys ; dietary intake ; Energy Intake ; Fatty Acids - administration & dosage ; Fatty Acids, Unsaturated - administration & dosage ; Female ; Humans ; Male ; niveles séricos ; NUTRITION & DIETETICS ; Rural Population ; serum levels ; Urban Population ; vitamin E ; Vitamin E - administration & dosage ; vitamina E
É parte de: Archivos latinoamericanos de nutrición, 2003-06, Vol.53 (2), p.165-171
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: Results from several studies have suggested that vitamin E intake could inhibit the progression of atherosclerotic lesions. Therefore, this study was designed to evaluate Costa Rican adolescents' serum alpha-tocopherol levels and their correlation with Body Mass Index (BMI) and the dietary intake of vitamin E and saturated and polyunsaturated fat. Ninety-five healthy, non-smoking adolescents and non-vitamin supplement users (aged 13-18) from urban and rural areas in San José, Costa Rica, were included in this study. Serum levels of lipid adjusted alpha-tocopherol were significantly higher in rural adolescents compared with urban youngsters (4.192 mumol/mmol +/- 0.831 and 3.486 mumol/mmol +/- 0.996, respectively). Likewise, reported mean daily 1000 kcal adjusted-vitamin E intake was higher in rural adolescents than in urban youngsters (9.2 +/- 3.7 mg. 16.0 +/- 8.7 mg). An important correlation was observed between intake of energy from saturated fat and adjusted-alpha-tocopherol serum levels (r = 0.430). Contrariwise, they correlated poorly with dietary alpha-tocopherol (r = 0.273), suggesting that serum is not a good biomarket of intake for alpha-tocopherol. Additionally, our results showed a negative relationship between BMI and adjusted-serum vitamin E levels (beta = 0.189; CI 95% -0.153, -0.013). The analysis of vitamin E intake showed that over 25% of adolescents have inadequate intake of the nutrient. This study suggests that nutritionists and pediatricians should encourage alpha-tocopherol intake and monitor the food sources of the nutrient and the adolescents' body weight as part of the strategies aimed at developing a healthy lifestyle.
Editor: Venezuela: Sociedad Latinoamericana de Nutrición
Idioma: Inglês;Português

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Comparison of serum concentration and dietary intake of alpha-tocopherol in a sample of urban and rural Costa Rican adolescents

Monge-Rojas, Rafael ; Alfaro Calvo, Thelma ; Nuñez Rivas, Hilda

Venezuela: Sociedad Latinoamericana de Nutrición

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