Interestingly, anthocyanin intake decreased androgen metabolism-related factors, such as androgen receptor (AR), 5-α reductase type 2 (5AR2), steroid receptor coactivator 1 (SRC1), and prostate specific antigen (PSA) expression in BPH tissues and serum levels of DHT. This evidence concerns the gene KLK3 and benign prostatic hyperplasia.