The Impact of Plant-Based Diets on Cardiovascular Health in Adults: A Systematic Review and Meta-Analysis

Thesis Abstract

Abstract
The prevalence of cardiovascular diseases (CVDs) remains a global health concern, necessitating ongoing research into dietary interventions that can help prevent or manage these conditions. This thesis presents a comprehensive systematic review and meta-analysis examining the impact of plant-based diets on cardiovascular health in adults. The study aims to synthesize existing research findings to provide a clear understanding of the relationship between plant-based diets and cardiovascular outcomes. Chapter 1 introduces the background of the study, highlighting the rising burden of CVDs worldwide and the potential role of plant-based diets in promoting cardiovascular health. The problem statement emphasizes the need for evidence-based dietary recommendations to combat CVDs, setting the stage for the objectives of the study, which include evaluating the effects of plant-based diets on cardiovascular risk factors and outcomes. The limitations and scope of the study are outlined, along with the significance of the research in contributing valuable insights to the field of nutrition and dietetics. The structure of the thesis and key definitions of terms are also provided to guide the reader through the subsequent chapters. Chapter 2 presents a detailed literature review encompassing ten key aspects related to plant-based diets and cardiovascular health. This section synthesizes existing research studies, reviews, and meta-analyses to establish the current state of knowledge on the topic, identifying gaps and inconsistencies in the literature that warrant further investigation. Chapter 3 outlines the research methodology employed in conducting the systematic review and meta-analysis. Key components such as study selection criteria, search strategies, data extraction methods, and statistical analysis techniques are described in detail. The chapter also discusses the quality assessment of included studies and the measures taken to ensure the reliability and validity of the findings. Chapter 4 presents an in-depth discussion of the findings derived from the systematic review and meta-analysis. The results are analyzed and interpreted to elucidate the impact of plant-based diets on various cardiovascular risk factors, including blood pressure, lipid profiles, and inflammatory markers. Subgroup analyses and sensitivity analyses are conducted to explore potential sources of heterogeneity and assess the robustness of the results. Chapter 5 concludes the thesis by summarizing the key findings, implications, and recommendations for future research and clinical practice. The limitations of the study are acknowledged, and avenues for further investigation are suggested to advance our understanding of the role of plant-based diets in promoting cardiovascular health in adults. In conclusion, this thesis contributes to the growing body of evidence supporting the benefits of plant-based diets in improving cardiovascular health outcomes. By synthesizing existing research and conducting a meta-analysis, this study provides valuable insights that can inform dietary recommendations and public health initiatives aimed at reducing the burden of cardiovascular diseases globally.