Plant-based diet improves cardiovascular profile by lowering blood lipid levels

New research revealed that vegetarian and vegan diets improve cardiovascular health by reducing the blood levels of total cholesterol, low-density lipoprotein cholesterol, and apolipoprotein B thus reducing the atherosclerotic burden from atherogenic lipoproteins. The study results were published in the journal European Heart Journal. 

Cardiovascular diseases are the leading cause of mortality in the world due to atherosclerosis. Unhealthy lifestyles like cigarette smoking, high blood pressure, diabetes, and atherogenic apolipoprotein B (apo B) containing lipoprotein particles are primary risk factors for atherosclerotic cardiovascular disease (ASCVD). Plant-based diets are becoming increasingly popular as people become more concerned about the environment and health. As there is not enough literature on the effects of vegetarian or vegan diets on blood lipid levels, researchers conducted a systematic review and meta-analysis of 30 randomized controlled trials to examine changes in blood levels of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), triglycerides (TG), and apolipoprotein B (apo B) after consumption of a plant-based intervention diet vs. an omnivorous diet. 

Using keywords all the studies published between 1980 and October 2022 were searched for in databases like PubMed, Embase, and references of previous reviews. Included studies were randomized controlled trials that quantified the effect of vegetarian or vegan diets vs. an omnivorous diet on blood lipids and lipoprotein levels in adults over 18 years. Estimates were calculated using a random-effects model.