Replied by ivybridge (TN) on 07/08/2021
"Various preparations of pomegranate, curcumin, sulforaphane, indole-3-carbinol (I3C) and green tea have been shown in clinical trials to reduce levels of PSA"
https://www.lifeextension.com/protocols/cancer/prostate-cancer-prevention
Replied by Dano (Idaho) on 07/11/2021
Supplemental Iodine has helped bring down a high PSA. The prostate is rich in iodine. Drs. Brownstein and Sircus have more info on their sites. Raw dandelion root extract and stinging nettle root extract have both been proven clinically effective at lowering a high PSA. Best wishes for healing.