Evidence supporting the use of: Epigallocatechin gallate (EGCG)
For the body system: Prostate

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Epigallocatechin gallate (EGCG) is a polyphenol found predominantly in green tea and has been investigated for its potential benefits in supporting prostate health. The primary scientific interest in EGCG with respect to the prostate centers on its potential role in prostate cancer prevention and management. Multiple laboratory studies have demonstrated that EGCG can inhibit the proliferation of prostate cancer cells and induce apoptosis (programmed cell death) in vitro. Additionally, EGCG appears to interfere with pathways involved in inflammation and androgen receptor signaling, both of which are relevant to prostate health.

However, while preclinical (cell and animal) studies are promising, evidence from human clinical trials is limited and not conclusive. Some small-scale studies suggest EGCG supplementation may reduce levels of prostate-specific antigen (PSA) in men with high-grade prostatic intraepithelial neoplasia, a precursor to prostate cancer. Nonetheless, these findings require confirmation in larger, well-controlled trials. There is less direct evidence supporting EGCG for benign prostatic hyperplasia (BPH) or general prostate health outside the cancer context.

Overall, while there is a scientific rationale and some preliminary data supporting EGCG’s potential for prostate health, particularly regarding prostate cancer risk, the clinical evidence remains modest. More robust human studies are needed before definitive recommendations can be made.

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