How many studies support Plant-Rich Diet?

Large cohort studies, including UK Biobank and Nurses' Health Study data, along with a systematic review and meta-analysis on chronic kidney disease, consistently associate plant-rich dietary patterns with lower mortality and reduced risk of major chronic diseases, particularly when the plant foods are minimally processed and nutrient-dense rather than refined. That's backed by 10 published studies in Vitaebase's database, including 2 meta-analyses, the most recent from 2025 -- a fairly substantial body of research for a single topic.