Table 1.

Eligibility criteria used in the present umbrella review.

Parameter	Inclusion	Exclusion
Population	Adults with age ≥ 16 years	Specific population (e.g., diabetic)
Intervention	Vegetarian diet, vegan diet, plant-based diet	An omnivorous diet with additional vegetable/fruit
Comparison	Non-vegetarian diet
Outcome	Cardiovascular (CVD) events, CVD mortality, coronary heart disease (CHD), CHD mortality, ischemic stroke	Hemorrhagic stroke
Study design	Systematic reviews, including meta-analyses (Quantitative analysis) of prospective observational studies (cross-sectional, case-control, cohort) or randomized clinical trials (RCTs)	Systematic review without meta-analysis, narrative review