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Study Raises Questions About Testosterone Therapy

But it doesn't prove heart harms from the popular supplements

continued...

Study co-author Ho pointed out that the researchers tried to account for the possible effect of health conditions such as diabetes. It's conceivable that testosterone supplements could worsen sleep apnea and boost the risk of blood clots, he suggested.

Dr. John Amory, a professor of medicine at the University of Washington Medical Center, said the findings shouldn't worry people because they could easily be misleading. But they do point to the importance of research that will do a better job of identifying any risks from testosterone supplements. "The final verdict will wait," he said.

Amory added that testosterone treatment is definitely a good idea in certain cases, such as in a young man who's lost his testicles to cancer. In other men, especially those who are older and sicker, it's not as clear that the benefits outweigh the risks, he said.

The study appears in the Nov. 6 issue of the Journal of the American Medical Association.

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