Study selection:
Systematic search of databases retrieved 3502 articles. By removing duplicate papers, 2199 articles remained for reading title and abstract. After reading titles and abstracts, 2169 of them were excluded; 30 RCTs remained for reading full text. Seven articles were excluded due to following reasons: non-English article (n=1), using other nutrients beside soy intervention (n=5), not reporting CRP unit (n=1) (Figure 1 ). Therefore, 23 papers were eligible for this systematic review (24-36, 46-55). Since 4 articles (28, 32, 50, 55) did not report enough data for meta-analysis, 19 articles were included in meta-analysis (24-27, 29-31, 33-36, 46-49, 51-54). (Table 1 ).