Here's some data / information that should help in the discussion of the benefits of Pomegranate Juice (PJ):
From the NCBI, October 2012:
Specific Pomegranate Juice Components as Potential Inhibitors of Prostate Cancer Metastasis
"As a result of these findings, several studies have shown that PJ affects many of the cellular processes involved in cell death and also affects signaling pathways that could inhibit cell migration and invasion.
We have shown previously that PJ inhibits the migratory and metastatic properties of hormone refractory prostate cancer cells by stimulating cell adhesion and inhibiting cell migration/chemotaxis."
Conclusion and Future Prospects
"To date, there is no cure for prostate cancer when recurrence occurs after surgery and/or radiation. In particular, when it recurs after hormone ablation therapy, there are no other effective treatments for deterrence of cancer progression. Here, we show that luteolin, ellagic acid, and punicic acid, components of PJ, can potentially be used as antimetastatic treatments to deter prostate cancer metastasis. L + E + P interfere with multiple biologic processes involved in metastasis of cancer cells such as suppression of cell growth, increase in cell adhesion, inhibition of cell migration, and inhibition of chemotaxis toward proteins that are important in prostate cancer metastasis to the bone."
Here's the link:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3470115/