Bibliographic citations
Picasso, M., Lo, J., Ramos, J. (2016). El efecto de la dieta vegetariana en la presentación del síndrome metabólico o sus componentes en adultos [Tesis, Universidad Peruana de Ciencias Aplicadas (UPC)]. http://hdl.handle.net/10757/621846
Picasso, M., Lo, J., Ramos, J. El efecto de la dieta vegetariana en la presentación del síndrome metabólico o sus componentes en adultos [Tesis]. PE: Universidad Peruana de Ciencias Aplicadas (UPC); 2016. http://hdl.handle.net/10757/621846
@misc{renati/365633,
title = "El efecto de la dieta vegetariana en la presentación del síndrome metabólico o sus componentes en adultos",
author = "Ramos Villanueva, Juselly",
publisher = "Universidad Peruana de Ciencias Aplicadas (UPC)",
year = "2016"
}
Background and aims: Several studies have reported the effect of vegetarian diets on metabolic syndrome (MetS) or its components; however, results are not consistent. The aim of this study was to carry out a systematic review and meta-analysis of randomized controlled trials (RCT’s) and observational studies that evaluate the association between vegetarian diets and MetS or its components (systolic blood pressure [SBP], diastolic blood pressure [DBP], fasting glucose, triglycerides, waist circumference [WC], HDL-cholesterol (HDL-C) in adults. Methods: PubMed, Web of Science, EMBASE, Scopus and the Cochrane Library were searched. Random effects meta-analyses stratified by study design were used. Results: A total of 64 studies (n=45 345) met the inclusion criteria (5 RCTs, 2 cohorts, 57 cross- sectional). Vegetarian diets were not associated with MetS when compared with omnivore diet (OR 0.96, 95%CI 0.50 to 1.85, p=0.9). Likewise, meta-analysis of RCTs and cohort studies indicated that consumption of vegetarian diets were not associated with MetS components. However, meta-analysis of cross-sectional studies showed that vegetarian diets were associated with significantly lower levels of SBP (MD -4.40 mmHg, 95%CI –6.16 to -2.63, p<0.00001), DBP (MD -2.99 mmHg, 95%CI –5.00 to -0.98, p=0.004), fasting glucose (MD -0.31 mmol/l, 95%CI –0.43 to -0.20, p<0.00001), and HDL-C (MD -0.05 mmol/l, 95%CI –0.08 to -0.03, p=0.0001) in comparison to omnivore diet. Heterogeneity of effects among cross-sectionals studies was high, and was maintained in most of the subgroup analysis performed. Furthermore, half of the included studies have high risk of bias. Conclusions: Vegetarian diets were not associated with lower risk of MetS in comparison to omnivore diets. The association between vegetarian diets and lower levels of SBP, DBP, HDL-C, and fasting glucose is unclear due to high heterogeneity and severe methodological limitations found in cross-sectional studies. Future prospective and controlled studies are needed to evaluate the association between vegetarian diets and MetS and its components.
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