In a controlled study involving 42 participants at risk of prostate disease with LUTS (lower urinary tract symptoms), elevated prostate-specific antigen (PSA) and confirmed non-bacterial prostatitis, results indicate that supplementation with dried powdered cranberries may ameliorate LUTS. The subjects were assigned to supplementation with or without 1500 mg/day of dried powdered cranberries for a period of 6 months. At intervention end, significant improvement in International Prostate Symptom Score, quality of life, urination parameters including voiding parameters (rate of urine flow, average flow, total volume and post-void residual urine volume), and lower total PSA level were observed in the cranberry group alone. Thus, the authors of this study conclude, "The results of the present trial are the first firm evidence that cranberries may ameliorate LUTS, independent of benign prostatic hyperplasia or C-reactive protein level." [ABSTRACT FROM AUTHOR]