Abstract
Background
Health-related quality of life (HRQL) is a global indicator of perceived health status,
which includes physical and mental domains. Several biological mechanisms might support
an association between consumption of yogurt and better HRQL.
Objective
Our aim was to assess the association between habitual yogurt consumption and HRQL
in the general adult population.
Design
We conducted a prospective study with 4,445 individuals aged 18 years and older who
were recruited in 2008 to 2010 and were followed up to 2012. Habitual yogurt consumption
was assessed at baseline with a validated diet history. HRQL was measured with the
Physical Composite Summary and the Mental Composite Summary of the Spanish version
of the SF-12 Health Survey. The analysis of the association between baseline yogurt
consumption and HRQL at 2012 was performed with linear regression and adjusted for
the main confounders, including baseline HRQL.
Results
Mean follow-up was 3.5 years (standard deviation=0.6 years). Compared with nonconsumers
of yogurt, the Physical Composite Summary scores were similar in habitual consumers
of ≤6 servings/week (β=.40; P=0.20) and in consumers of ≥1 serving/day (β=.25; P=0.45). A suggestion of tendency toward a lower Mental Composite Summary score was
found among daily yogurt consumers (β=−.65; P=0.09; P for trend across categories=0.07). Results were similar among individuals without
morbidity, never smokers, and individuals with higher adherence to the Mediterranean
diet.
Conclusions
Habitual yogurt consumption did not show an association with improved HRQL.
Keywords
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Biography
E. Lopez-Garcia is an associate professor, Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPAZ, CIBER of Epidemiology and Public Health, Madrid, Spain.
Biography
L. Leon-Muñoz is a research associate, Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPAZ, CIBER of Epidemiology and Public Health, Madrid, Spain.
Biography
P. Guallar-Castillon is a professor, Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPAZ, CIBER of Epidemiology and Public Health, Madrid, Spain.
Biography
F. Rodríguez-Artalejo is a professor, Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPAZ, CIBER of Epidemiology and Public Health, Madrid, Spain.
Article info
Publication history
Published online: July 19, 2014
Accepted:
May 13,
2014
Footnotes
STATEMENT OF POTENTIAL CONFLICT OF INTEREST No potential conflict of interest was reported by the authors.
FUNDING/SUPPORT Baseline data collection was funded by Sanofi-Aventis. Data collection during follow-up was funded by the Spanish Government grants 09/1626 and 11/01379 (Ministry of Health of Spain). Funding specific for this analysis was obtained from the Spanish Government grants 09/00104 and 13/00288 (Ministry of Health of Spain).
Identification
Copyright
© 2015 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.
