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Nutr Metab Cardiovasc Dis. 2011 Jun;21 Suppl 1:S40-5. doi: 10.1016/j.numecd.2010.11.005. Epub 2011 Jan 8.

Nut consumption, weight gain and obesity: Epidemiological evidence.

Author information

1
Department of Preventive Medicine and Public Health, University of Navarra, Spain. mamartinez@unav.es

Abstract

BACKGROUND AND AIMS:

Short-term trials support that adding tree nuts or peanuts to usual diets does not induce weight gain. We reviewed the available epidemiological evidence on long-term nut consumption and body weight changes. We also report new results from the SUN ("Seguimiento Universidad de Navarra") cohort.

METHODS AND RESULTS:

Published epidemiologic studies with ≥1-yr follow-up were located. Two published reports from large cohorts (SUN and Nurses Health Study-2) showed inverse associations between frequency of nut consumption and long-term weight changes. A beneficial effect of a Mediterranean diet supplemented with tree nuts on waist circumference was reported after 1-yr follow-up in the first 1224 high-risk participants in the PREDIMED ("PREvencion DIeta MEDiterranea") trial. After assessing 11,895 participants of the SUN cohort, a borderline significant (p value for trend = 0.09) inverse association between baseline nut consumption and average yearly weight gain (multivariate-adjusted means = 0.32 kg/yr (95% confidence interval: 0.22-0.42) and 0.24 (0.11-0.37) kg/yr for participants with no consumption and >4 servings/week, respectively) was found after a 6-yr follow-up.

CONCLUSIONS:

Consumption of nuts was not associated with a higher risk of weight gain in long-term epidemiologic studies and clinical trials.

PMID:
21216574
DOI:
10.1016/j.numecd.2010.11.005
[Indexed for MEDLINE]

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