Supplement Link to Prostate Cancer?

When two patients developed unusually aggressive metastatic prostate cancer within months of starting the same muscle-building dietary supplement, researchers here started investigating.

The supplement contained testosterone and estradiol but promoted cancer cell growth more potently than testosterone alone while hampering androgen blockade, found Shahrokh F. Shariat, M.D., of the University of Texas Southwestern Medical Center here, and colleagues, in the Jan. 15 issue of Clinical Cancer Research.

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