Cited by 193Nutritional Studies and DietNutrition, Genetics, and DiseaseNuts composition and effects

A large randomized individual and group intervention conducted by registered dietitians increased adherence to Mediterranean-type diets: the PREDIMED study

Zazpe, Itziar, Sanchez-Tainta, Ana, Estruch, Ramon, Lamuela-Raventos, Rosa María, Schröder, Helmut, Salas-Salvado, Jordi, Corella, Dolores, Fiol, Miquel +7 more·2008·Journal of the American Dietetic Association

Abstract

Objective To assess the effectiveness of an intervention aimed to increase adherence to a Mediterranean diet.Design A 12-month assessment of a randomized primary prevention trial.Subjects/settings One thousand five hundred fifty-one asymptomatic persons aged 55 to 80 years, with diabetes or > or =3 cardiovascular risk factors.Intervention Participants were randomly assigned to a control group or two Mediterranean diet groups. Those allocated to the two Mediterranean diet groups received individual motivational interviews every 3 months to negotiate nutrition goals, and group educational sessions on a quarterly basis. One Mediterranean diet group received free virgin olive oil (1 L/week), the other received free mixed nuts (30 g/day). Participants in the control group received verbal instructions and a leaflet recommending the National Cholesterol Education Program Adult Treatment Panel III dietary guidelines.Main outcome measures Changes in food and nutrient intake after 12 months.Statistical analyses Paired t tests (for within-group changes) and analysis of variance (for between-group changes) were conducted.Results Participants allocated to both Mediterranean diets increased their intake of virgin olive oil, nuts, vegetables, legumes, and fruits (P<0.05 for all within- and between-group differences). Participants in all three groups decreased their intake of meat and pastries, cakes, and sweets (P<0.05 for all). Fiber, monounsaturated fatty acid, and polyunsaturated fatty acid intake increased in the Mediterranean diet groups (P<0.005 for all). Favorable, although nonsignificant, changes in intake of other nutrients occurred only in the Mediterranean diet groups.Conclusions A 12-month behavioral intervention promoting the Mediterranean diet can favorably modify an individual's overall food pattern. The individual motivational interventions together with the group sessions and the free provision of high-fat and palatable key foods customary to the Mediterranean diet were effective in improving the dietary habits of participants in this trial.

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Crossref · 10.1016/j.jada.2008.04.011

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Authors
Zazpe, I., Sanchez-Tainta, A., Estruch, R., Lamuela-Raventos, R. M., Schröder, H., Salas-Salvado, J., Corella, D., Fiol, M., Gomez-Gracia, E., Aros, F., Ros, E., Ruíz-Gutierrez, V., Iglesias, P., Conde-Herrera, M., & Martinez-Gonzalez, M. A.
Venue
Journal of the American Dietetic Association
Publisher
Elsevier BV
Published
2008-07
Volume
108
Issue
7
Pages
1134-1144
ISSN
0002-8223 (ISSN-L)
OpenAlex
W2171300544
Cited by
193
References
43
Citations by year
2026: 4 · 2025: 7 · 2024: 3 · 2023: 7 · 2022: 14 · 2021: 10 · 2020: 9 · 2019: 12 · 2018: 11 · 2017: 15 · 2016: 10 · 2015: 13 · 2014: 15 · 2013: 10 · 2012: 12
FWCI
13.58
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Dietetic Association (publishedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
Funders
  • Generalitat Valenciana (ACOMP06109)
  • Centro de Investigación Biomédica en Red-Fisiopatología de la Obesidad y Nutrición
  • Instituto de Salud Carlos III (RTIC RD06/0045, PI41/2005)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Nutrition, Genetics, and Disease
  • Health Sciences › Nursing › Nutrition and Dietetics › Nuts composition and effects
Keywords
Mediterranean diet, dietary adherence, motivational interviewing, virgin olive oil, mixed nuts, registered dietitians, primary prevention, cardiovascular risk factors, diabetes mellitus, older adults, dietary intake, dietary fiber, monounsaturated fatty acids, polyunsaturated fatty acids
MeSH terms
Olive Oil, Aged, Aged, 80 and over, Cardiovascular Diseases, Dietetics, Feeding Behavior, Female, Fruit, Health Promotion, Humans, Fabaceae, Male, Middle Aged, Nuts, Patient Compliance, Plant Oils, Risk Factors, United States, Vegetables, Biomarkers, Prevalence, Diet, Mediterranean

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