Vitamin status in elderly people in relation to the use of nutritional supplements
- Autor(en)
- E Fabian, M Bogner, A Kickinger, K H Wagner, I Elmadfa
- Abstrakt
OBJECTIVE: This study aimed to evaluate the status of several vitamins and to investigate the effect of regular individual supplementation on their status in this population.
DESIGN: An observational study.
SETTING: State of Burgenland, Austria.
PARTICIPANTS: A total of 102 non-institutionalized subjects (49% supplementing regularly, 51% without supplementation) aged between 70-90 years were recruited.
MEASUREMENTS: Plasma levels of vitamins A, D, E, K and C were determined by HPLC. The functional parameters of vitamins B1, B2 and B6, i.e. the activities of the erythrocyte enzymes transketolase, glutathione reductase and glutamic oxaloacetic transaminase, were analyzed photometrically; plasma folate and vitamin B12 were determined by RIA.
RESULTS: The status of vitamins A, E and C was generally satisfactory. Eighty-eight percent and 42% of participants were deficient in vitamins D and K, respectively, as were 29% for B6; up to 10% of participants were deficient in vitamins B1, B2, B12 and folate. A considerable percentage of participants was, however, at risk for vitamin deficiencies (vitamins B1, B6, B12, folate: 20-30%, vitamin B2: 60%). Except for vitamins A and K, regular intake of supplements had a significant positive influence on vitamin levels.
CONCLUSION: These results indicate that use of supplements significantly improved the status of several vitamins in elderly people. Due to age-related problems concerning the intake and digestion of nutrients, a moderate, regular supplementation might be a useful option for older people who are otherwise unable to satisfy their micronutrient requirements.
- Organisation(en)
- Department für Ernährungswissenschaften
- Externe Organisation(en)
- Universität Wien
- Journal
- Journal of Nutrition, Health and Aging
- Band
- 16
- Seiten
- 206-212
- Anzahl der Seiten
- 7
- ISSN
- 1279-7707
- DOI
- https://doi.org/10.1007/s12603-011-0159-5
- Publikationsdatum
- 03-2012
- Peer-reviewed
- Ja
- ÖFOS 2012
- 303012 Gesundheitswissenschaften
- Schlagwörter
- Link zum Portal
- https://ucris.univie.ac.at/portal/de/publications/vitamin-status-in-elderly-people-in-relation-to-the-use-of-nutritional-supplements(c0ed26bb-d345-43ce-9bd3-7c86f2dba902).html