The effect of tree nut, peanut, and soy nut consumption on blood pressure: a systematic review and meta-analysis of randomized controlled clinical trials
Mohammadifard N, Salehi-Abargouei A, Salas-Salvadó J, Guasch-Ferré M, Humphries K, Sarrafzadegan N
The American journal of clinical nutrition · 111 citas
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Cómo se estudió
- Diseño
- Metaanálisis (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
- Consumo medido con
- No se indica
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2015-03-26 · Am J Clin Nutr · vol. 101 · número 5 · págs. 966–982
- Editorial
- Elsevier BV
- Citado
- 170 citas · más que el 93% de estudios similares · 3.1× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 61 trabajos
- Acceso
- Lectura gratuita
- Áreas de investigación
- Nuts composition and effects · Blood Pressure and Hypertension Studies · Sodium Intake and Health
- Palabras clave
- nut consumption, tree nuts, groundnut, blood pressure, systolic blood pressure, diastolic blood pressure, pistachio, mixed nuts, type 2 diabetes, dietary intervention, hypertension prevention, Juglans regia, almond, hazelnut, Anacardium occidentale, macadamia nuts, Carya illinoinensis
- MeSH
- humans, anacardium, pistacia, corylus, carya, juglans, prunus, nuts, diabetes mellitus, type 2, diet, blood pressure, databases, factual, randomized controlled trials as topic, arachis, glycine max
6 autores
- Noushin Mohammadifard🇮🇷🇨🇦🇪🇸 · autor de correspondenciaIsfahan University of Medical Sciences; University of British Columbia; Shahid Sadoughi University of Medical Sciences and Health Services; Institut de Recerca Biomèdica Catalunya Sud; Universitat Rovira i Virgili
- Amin Salehi‐Abargouei🇮🇷🇨🇦🇪🇸Isfahan University of Medical Sciences; University of British Columbia; Shahid Sadoughi University of Medical Sciences and Health Services; Institut de Recerca Biomèdica Catalunya Sud; Universitat Rovira i Virgili
- Jordi Salas‐Salvadó🇮🇷🇨🇦🇪🇸Isfahan University of Medical Sciences; University of British Columbia; Shahid Sadoughi University of Medical Sciences and Health Services; Institut de Recerca Biomèdica Catalunya Sud; Universitat Rovira i Virgili
- Marta Guasch‐Ferré🇮🇷🇨🇦🇪🇸Isfahan University of Medical Sciences; University of British Columbia; Shahid Sadoughi University of Medical Sciences and Health Services; Institut de Recerca Biomèdica Catalunya Sud; Universitat Rovira i Virgili
- Karin H. Humphries🇮🇷🇨🇦🇪🇸Isfahan University of Medical Sciences; University of British Columbia; Shahid Sadoughi University of Medical Sciences and Health Services; Institut de Recerca Biomèdica Catalunya Sud; Universitat Rovira i Virgili
- Nizal Sarrafzadegan🇮🇷🇨🇦🇪🇸Isfahan University of Medical Sciences; University of British Columbia; Shahid Sadoughi University of Medical Sciences and Health Services; Institut de Recerca Biomèdica Catalunya Sud; Universitat Rovira i Virgili
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
Although several studies have assessed the effects of nut consumption (tree nuts, peanuts, and soy nuts) on blood pressure (BP), the results are conflicting.
Objective
The aim was to conduct a systematic review and meta-analysis of published randomized controlled trials (RCTs) to estimate the effect of nut consumption on BP.
Design
The databases MEDLINE, SCOPUS, ISI Web of Science, and Google Scholar were searched for RCTs carried out between 1958 and October 2013 that reported the effect of consuming single or mixed nuts (including walnuts, almonds, pistachios, cashews, hazelnuts, macadamia nuts, pecans, peanuts, and soy nuts) on systolic BP (SBP) or diastolic BP (DBP) as primary or secondary outcomes in adult populations aged ≥18 y. Relevant articles were identified by screening the abstracts and titles and the full text. Studies that evaluated the effects for <2 wk or in which the control group ingested different healthy oils were excluded. Mean ± SD changes in SBP and DBP in each treatment group were recorded for meta-analysis.
Results
Twenty-one RCTs met the inclusion criteria. Our findings suggest that nut consumption leads to a significant reduction in SBP in participants without type 2 diabetes [mean difference (MD): -1.29; 95% CI: -2.35, -0.22; P = 0.02] but not in the total population. Subgroup analyses of different nut types suggest that pistachios, but not other nuts, significantly reduce SBP (MD: -1.82; 95% CI: -2.97, -0.67; P = 0.002). Our study suggests that pistachios (MD: -0.80; 95% CI: -1.43, -0.17; P = 0.01) and mixed nuts (MD: -1.19; 95% CI: -2.35, -0.03; P = 0.04) have a significant reducing effect on DBP. We found no significant changes in DBP after the consumption of other nuts.
Conclusions
Total nut consumption lowered SBP in participants without type 2 diabetes. Pistachios seemed to have the strongest effect on reducing SBP and DBP. Mixed nuts also reduced DBP.
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