Is Vegetables good for cardiovascular health?

Yes — the evidence for this is strong. A large meta-analysis of prospective cohorts, together with a dose-response meta-analysis linking fruit and vegetable intake to lower cardiovascular disease, cancer, and all-cause mortality, provides consistent support for a cardiometabolic benefit of higher vegetable intake. That's reflected in an evidence score of 72/100 for its role in cardiovascular health, drawn from 6 studies, with an estimated impact on longevity rated substantial (72/100).