This overview of the scientific literature looked at studies of men receiving therapeutic testosterone for low testosterone levels. Forty four met inclusion criteria: 11 placebo-controlled, randomized studies; 29 non-placebo-controlled studies of men with no prostate cancer history; and 4 studies of men with low testosterone levels with a history of prostate cancer. None showed that the testosterone therapy increased prostate cancer risk or increased the severity of already present cancer in treated vs untreated men.
Shabsigh R, Crawford ED, Nehra A, Slawin KM. Research advance online publication, 17 July 2008; doi:10.1038/ijir.2008.31. International Journal of Impotence PMID: 18633357 [PubMed—as supplied by publisher]
Jacob Teitelbaum, M.D. is one of the world's leading integrative medical authorities on fibromyalgia and chronic fatigue. He is the lead author of four research studies on their treatments, and has published numerous health & wellness books, including the bestseller on fibromyalgia From Fatigued to Fantastic! and The Fatigue and Fibromyalgia Solution. Dr. Teitelbaum is one of the most frequently quoted fibromyalgia experts in the world and appears often as a guest on news and talk shows nationwide including Good Morning America, The Dr. Oz Show, Oprah & Friends, CNN, and Fox News Health.