A review of several studies involving 697 men with benign prostatic hyperplasia (BPH) looked at the effects of curcumin. These men were already taking standard medications like alpha-blockers or 5-alpha-reductase inhibitors. The researchers compared those taking curcumin to those taking a placebo.
The findings showed that men who took curcumin had better scores on the International Prostate Symptom Score (IPSS). They also saw a reduction in prostate volume and post-void residual volume, as well as an increase in their maximum urinary flow rate. Additionally, there was a slight decrease in prostate-specific antigen (PSA) levels.
While these results are promising, it is important to note that the evidence comes from a mix of different study designs. Because of this variety and some inconsistencies in the data, the findings are not yet definitive. You should talk with your doctor before adding any new supplements to your current treatment plan.