A systematic review and meta-analysis of 26 randomized controlled trials found that the intake of dietary pulses (beans, chickpeas, lentils and peas) at a median dose of 130 g/d (about 1 serving daily) significantly lowered LDL cholesterol levels compared with the control diets (about 5% from baseline), although there were substantial variation in results between trials. Treatment effects on apolipoprotein B and non-HDL cholesterol were not observed. In a previous meta-analysis of 19 trials comparing statin use and nonstatin use with dietary interventions, a 1% reduction in LDL cholesterol translated to a 1% reduction in cardiovascular mortality.对26个随机对照试验的系统综述和汇总分析发现，食用豆类（蚕豆，鹰嘴豆，小扁豆和豌豆），中位量为130克/天（约每日1份）较对照膳食显著降低低密度脂蛋白胆固醇水平（约降低5％），虽然各试验结果之间存在大幅差异。没有观察到对载脂蛋白B和非高密度脂蛋白胆固醇的疗效。此前对19项比较他汀类药物与非他汀类和饮食干预研究的汇总分析结果显示，LDL胆固醇降低1％可转化为心血管病的死亡率降低1％。
