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
Article
Dans Espagnol
| 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.
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Indice:
LILAS (Amériques)
Sujet Principal:
Zinc
/
Enquêtes sur le régime alimentaire
/
État nutritionnel
/
Compléments alimentaires
/
Régime alimentaire
/
Programmes nationaux de santé
Type d'étude:
Essai clinique contrôlé
/
Études d'évaluation
/
Étude observationnelle
/
Étude pronostique
Limites du sujet:
Adulte très âgé
/
Femelle
/
Humains
/
Mâle
Pays comme sujet:
Amérique du Sud
/
Chili
langue:
Espagnol
Texte intégral:
Rev. méd. Chile
Thème du journal:
Médicament
Année:
2007
Type:
Article
Pays d'affiliation:
Chili
/
Mexique
/
États-Unis d'Amérique
Institution/Pays d'affiliation:
Instituto Mexicano del Seguro Social/MX
/
RAND/US
/
Secretaría de Salud/MX
/
Universidad de Chile/CL
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