+AA
En
Retour
Article de santé publique

L'effet des régimes végétariens sur la présentation de syndrome métabolique ou de ses composants: une revue systématique et méta-analyse



Examiner l'évaluation de la qualité : 8 (strong)

Référence: Picasso MC, Lo-Tayraco JA, Ramos-Villanueva JM, Pasupuleti V, & Hernandez AV. (2018). Effect of vegetarian diets on the presentation of metabolic syndrome or its components: A systematic review and meta-analysis. Clinical Nutrition, 10.1016/j.clnu.2018.05.021.

Lien vers PubMed

Résumé (en anglais)

BACKGROUND & AIMS: Several studies have examined the effect of vegetarian diets (VD) on metabolic syndrome (MetS) or its components, but findings have been inconsistent. The aim of this study was to perform a systematic review and meta-analysis of randomized controlled trials (RCTs) and observational studies to assess the association between VD 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: The Cochrane Library, EMBASE, PubMed, Web of Science, and Scopus were searched. RCTs, cohort studies and cross-sectional studies evaluating the effects of VD on MetS or its components in adults, with omnivore diet as control group, were included. Random effects meta-analyses stratified by study design were employed to calculate pooled estimates.
RESULTS: A total of 71 studies (n = 103 008) met the inclusion criteria (6 RCTs, 2 cohorts, 63 cross-sectional). VD were not associated with MetS in comparison to omnivorous diet (OR 0.96, 95% CI 0.50-1.85, p = 0.9) according to meta-analysis of five cross-sectional studies. Likewise, meta-analysis of RCTs and cohort studies indicated that consumption of VD were not associated with MetS components. Meta-analysis of cross-sectional studies demonstrated that VD were significantly associated with lower levels of SBP (mean difference [MD] -4.18 mmHg, 95%CI -5.57 to -2.80, p < 0.00001), DBP (MD -3.03 mmHg, 95% CI -4.93 to -1.13, p = 0.002), fasting glucose (MD -0.26 mmol/L, 95% CI -0.35to -0.17, p < 0.00001), WC (MD -1.63 cm, 95% CI -3.13 to -0.13, p = 0.03), and HDL-C (MD -0.05 mmol/L, 95% CI -0.07 to -0.03, p < 0.0001) in comparison to omnivorous diet. Heterogeneity of effects among cross-sectional studies was high. About, one-half of the included studies had high risk of bias.
CONCLUSIONS: VD in comparison with omnivorous diet is not associated with a lower risk of MetS based on results of meta-analysis of cross-sectional studies. The association between VD and lower levels of SBP, DBP, HDL-C, and fasting glucose is uncertain due to high heterogeneity across the cross-sectional studies. Larger and controlled studies are needed to evaluate the association between VD and MetS and its components.


Mots-clés

adultes (20-59), aînés (60+), diabète, maladies cardiovasculaires, méta-analyse, modification du comportement, nutrition

Voulez-vous savoir ce que lisent les professionnels? Inscrivez-vous pour accéder gratuitement à tous les contenus professionnels.

S'inscrire
La traduction française du contenu destiné au grand public sur ce site Web est soutenue en partie par le Réseau québécois de recherche sur le vieillissement.
© 2012 - 2017 McMaster University | 1280 Main Street West | Hamilton, Ontario L8S4L8 | +1 905-525-9140 | Conditions d'utilisation