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Shahrokh F. Shariat, MD; Dolores J. Lamb, PhD; Claus G. Roehrborn, MD; Kevin M. Slawin, MD

Arch Intern Med. 2008;168(2):235-236.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Patients seek dietary supplements to prevent and/or solve health and aging issues. Two men (a white man aged 67 years and an African American man aged 51 years) developed an unusual course of clinically aggressive prostate cancer within months of starting daily consumption of the same testosterone dietary supplement (TDS).

Both patients developed widely metastatic prostate cancer within 11 months of a normal prostate cancer screening (normal prostate-specific antigen level and digital rectal examination). They purchased the TDS via the Internet after reading an advertisement in a fitness journal. They sought to develop stronger muscles and enhanced sexual performance. Initially, they gained muscle mass and attained a higher than average energy level.

At the time of diagnosis, both patients had very low serum levels of total testosterone, luteinizing hormone, and follicle-stimulating hormone, suggesting a . . . [Full Text of this Article]

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