Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-23T04:40:11.386Z Has data issue: false hasContentIssue false

Vitamin status in different groups of the Spanish population: a meta-analysis of national studies performed between 1990 and 1999

Published online by Cambridge University Press:  01 April 2001

RM Ortega*
Affiliation:
Department of Nutrition, Faculty de Pharmacy, Complutense University of Madrid, E-28040 Madrid, Spain
MC Mena
Affiliation:
Department of Nutrition, Faculty de Pharmacy, Complutense University of Madrid, E-28040 Madrid, Spain
M Faci
Affiliation:
Department of Nutrition, Faculty de Pharmacy, Complutense University of Madrid, E-28040 Madrid, Spain
JF Santana
Affiliation:
Unit of Preventive Medicine and Public Health, Department of Clinical Sciences, Faculty of Health Sciences, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
L Serra-Majem
Affiliation:
Unit of Preventive Medicine and Public Health, Department of Clinical Sciences, Faculty of Health Sciences, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
*
*Corresponding author: Email [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
Objective:

Studies performed on the nutritional status of the Spanish population have been very heterogeneous with respect to methodology, sample size, geographical location, socio-economic level and health status of the subjects involved. In order to gain an overall view of the state of knowledge in this area, a meta-analysis was performed on the results of all such studies undertaken in Spain between 1990 and 1999.

Results:

The dietetic data reviewed showed mean intakes similar to those recommended. The results obtained for the biochemical parameters analysed were within normal limits. However, results for some vitamins were very close to the lower established limits for the reference intervals (recommended intakes or blood levels), meaning that a variable percentage of subjects show values lower than those recommended. The percentage of subjects with intakes below those recommended for niacin, vitamin B12 and C was small. The percentage of inadequate intakes of thiamine and riboflavin was small as well. However, for all other vitamins, especially D and E, the number of people with intakes below recommended was rather high, particularly so in some studies. At blood level, deficiencies of vitamins B12, A and E were infrequent. However, for all other vitamins, prevalence of deficiency varied within a wide range. With respect to vitamins D, B1, B2 and B6, over 50% of the population showed inadequate levels.

Conclusions:

The methodologies used in the studies included in this review were very varied and the knowledge gained is still incomplete. Despite the average Spanish diet often being regarded as satisfactory, this review and other studies show the situation can be improved.

Type
Research Article
Copyright
Copyright © CABI Publishing 2001

References

1 Serra Majem, Ll, Ferro-Luzzi, A, Bellizzi, MD, Salleras, L. Nutrition policies in Mediterranean Europe. Nutr. Rev. 1997; 55:S42–57.Google Scholar
2 Ortega, RM, Requejo, AM, López-Sobaler, AM, Navia, B, Perea, JM, Mena, MC, Faci, M, Lozano, MC, Navarro, AR. Conocimiento respecto a las características de una dieta equilibrada y su relación con los hábitos alimentarios de un colectivo de jóvenes universitarios. Nutr. Clin. 2000; 20:1925.Google Scholar
3 Ortega, RM. Polivitamínicos. Evidencias que apoyan su utilización y posibles beneficios. Rev. Esp. Nutr. Comunitaria 1999; 5: 1824.Google Scholar
4 Aranceta, J, Serra, L, Pérez, C, Llopis, J, Mataix, J, Ribas, L, Tojo, R, Tur, JM. An´lisis en población general. In: Aranceta, J, Serra, L, Ortega, RM, Entrala, A, Gil, A, eds. Libro Blanco: Las Vitaminas en la Alimentación de los Españoles. Estudio eVe. Madrid: Editorial Médica Panamericana, 2000;4993.Google Scholar
5 Entrala, A, Gil, A, Ortega, RM. Criterios para la suplementación con vitaminas en España. In: Aranceta, J, Serra, L, Ortega, RM, Entrala, A, Gil, A, eds. Libro Blanco: Las Vitaminas enla Alimentación de los Españoles. Estudio eVe. Madrid: Editorial Médica Panamericana, 2000;151–70.Google Scholar
6 Ortega, RM, Mena, MC, Faci, M, Santana, JF, Serra, L. Situaciónen vitaminas de la población española. Metaanálisis de los estudios realizados en España en el período 1990–1999. In: Aranceta, J, Serra, L, Ortega, RM, Entrala, A, Gil, A, eds. Libro Blanco: Las Vitaminas en la Alimentación de los Españoles. Estudio eVe. Madrid: Editorial Médica Panamericana, 2000;95142.Google Scholar
7 Dickersin, K, Hewitt, P, Mutch, L, Calmers, TC. Perusing the literature: comparison of MEDLINE searching with perinatal clinical trials database. Controlled Clin. Trials 1985; 6:306–17.Google Scholar
8 Fern´ndez-Ballart, JD, Delgado, M. El metaanálisis en epidemiología nutricional. Rev. Esp. Nutr. Comunitaria 1996; 2:7682.Google Scholar
9 Departamento de Nutrición. Ingestas Recomendadas de Energía y Nutrientes para la Población Española. Madrid: Departamento de Nutrición, 1994.Google Scholar
10 Thacker, SB. Meta-analysis. A quantitative approach to research integration. JAMA 1988; 259:1685–9.Google Scholar