Efecto del consumo de un complemento alimentario en la concentración plasmática de cinc en adultos mayores residentes en Santiago de Chile / Effect of the consumption of a food supplement on plasma zinc concentrations of free-living Chilean elderly adults
Rev. méd. Chile
;
135(8): 1015-1024, ago. 2007. tab
Artigo
em Espanhol
| LILACS
| ID: lil-466484
ABSTRACT
Background:
Zinc intake is well below recommendation among Chilean free living elderly adults of low socioeconomic levelAim:
To assess the effect of the consumption of a food supplement on plasma zinc concentrations in elderly adults (EA). Material andMethods:
Ambulatory EA (z70) with controlled type 2 diabetes mellitus or high blood pressure, ascribed to public family health centers were studied. They were separated in a control and intervention group, without blinding techniques. The intervention group consumed daily 50 g of a special nutritional supplement prepared as a soup or porridge, provided by the Government, for 3 months. The control group did not receive the supplement. A good compliance with the supplement was defined as a consumption of 7 portions per week. A fasting venous blood sample was obtained to determine plasma zinc at the beginning and end of the study.Results:
Forty three supplemented EA aged 76±5 years (21 women) and 31 non supplemented EA aged 78±5 years (20 women), completed 3 months of follow up. Mean compliance with the supplement was 40.5 percent (95 percent confidence intervals (CI) 40.3-40.6 percent). General characteristics of the study subjects upon recruitment were similar, except for the literacy that was higher in the intervention group. We fitted a multiple linear regression model which explained 39 percent of the variance, where the consumption of the nutritional supplement increased the concentration ofplasmatic zinc by 4.14 fig/dL (95 percent CI 0.25-8.02) (p<0.037), after controlling for sex, age, energy, vitamin E and calcium consumption.Conclusions:
The consumption of a food supplement significantly increased plasma zinc concentrations in Chilean elderly adults.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Zinco
/
Inquéritos sobre Dietas
/
Estado Nutricional
/
Suplementos Nutricionais
/
Dieta
/
Programas Nacionais de Saúde
Tipo de estudo:
Ensaio Clínico Controlado
/
Estudos de avaliação
/
Estudo observacional
/
Estudo prognóstico
Limite:
Idoso
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
América do Sul
/
Chile
Idioma:
Espanhol
Revista:
Rev. méd. Chile
Assunto da revista:
Medicina
Ano de publicação:
2007
Tipo de documento:
Artigo
País de afiliação:
Chile
/
México
/
Estados Unidos
Instituição/País de afiliação:
Instituto Mexicano del Seguro Social/MX
/
RAND/US
/
Secretaría de Salud/MX
/
Universidad de Chile/CL
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