Vegetarian, vegan diets and multiple health outcomes: A systematic review with meta-analysis of observational studies

@article{Dinu2017VegetarianVD,
  title={Vegetarian, vegan diets and multiple health outcomes: A systematic review with meta-analysis of observational studies},
  author={Monica Dinu and Rosanna Abbate and Gian Franco Gensini and Alessandro Casini and Francesco Sofi},
  journal={Critical Reviews in Food Science and Nutrition},
  year={2017},
  volume={57},
  pages={3640 - 3649}
}
BACKGROUND Beneficial effects of vegetarian and vegan diets on health outcomes have been supposed in previous studies. [] Key MethodMETHODS A comprehensive search of Medline, EMBASE, Scopus, The Cochrane Library, and Google Scholar was conducted. RESULTS Eighty-six cross-sectional and 10 cohort prospective studies were included.
Vegetarianism and veganism compared with mental health and cognitive outcomes: a systematic review and meta-analysis.
TLDR
A meta-analysis found that vegan or vegetarian diets were related to a higher risk of depression and lower anxiety scores, but no differences for other outcomes were found.
A Systematic Review of the Association Between Vegan Diets and Risk of Cardiovascular Disease
TLDR
Among the Western populations studied, evidence weakly demonstrates associations between vegan diets and risk of CVDs, with the direction of associations varying with the specific CVD outcome tested.
The Impact of Vegan Diet in the Prevention and Treatment of Type 2 Diabetes: A Systematic Review
TLDR
It is found that a vegan diet is associated with lower T2D prevalence or incidence and in T1D patients decreases high glucose values and improves glucose homeostasis, as reported from the majority of included studies.
Relation of Vegetarian Dietary Patterns With Major Cardiovascular Outcomes: A Systematic Review and Meta-Analysis of Prospective Cohort Studies
TLDR
Very low-quality evidence indicates that vegetarian dietary patterns are associated with reductions in CHD mortality and incidence but not with CVD and stroke mortality in individuals with and without diabetes.
The effect of vegetarian diets on iron status in adults: A systematic review and meta-analysis
TLDR
It is recommended that not only vegetarians but also non-vegetarians should regularly control their iron status and improve their diet regarding the content and bioavailability of iron by consuming more plants and less meat.
Adherence to the vegetarian diet may increase the risk of depression: a systematic review and meta-analysis of observational studies.
TLDR
Vegetarian diet significantly increased depression risk; however, the findings were not robust, and more studies are required to investigate the vegetarian diet and depression association.
Plant-based diets and risk of disease mortality: a systematic review and meta-analysis of cohort studies.
TLDR
The findings show the potential protective role of PBDs against chronic disease mortality, and there was an inverse association between healthy plant-based and vegetarian diets and the risk of all-cause mortality.
Vegetarianism and breast, colorectal and prostate cancer risk: an overview and meta‐analysis of cohort studies
TLDR
A summary of the existing evidence from cohort studies on vegetarian diets showed that complete exclusion of any source of protein from the diet is not associated with further benefits for human health.
The Association of Plant-Based Diet With Cardiovascular Disease and Mortality: A Meta-Analysis and Systematic Review of Prospect Cohort Studies
TLDR
A comprehensive study examines the effects of a plant-based diet on major clinical endpoints using more holistic PDIs and highlights the favorable role of healthful plant- based foods in reducing cardiovascular mortality and CVD.
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TLDR
It is suggested that vegetarians have a significantly lower ischemic heart disease mortality and overall cancer incidence than nonvegetarians.
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Vegetarians, those who avoid meat, and vegans, additionally avoiding dairy and eggs, represent 5% and 2%, respectively, of the US population. The aim of this review is to assess the effects of
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
Mortality from ischemic heart disease among vegetarians was 24% lower in vegetarians than in nonvegetarians, and was greater at younger ages and was restricted to those who had followed their current diet for >5 y.
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