Testosterone supplementation did not show consistent benefit for cardiovascular risk , sexual function , mood and behavior , or cognition .
Studies that examined clinical cardiovascular endpoints have not favored testosterone therapy over placebo .
Testosterone is ineffective in treating erectile dysfunction and controlled trials did not show a consistent effect on libido .
Testosterone supplementation consistently increased muscle strength but did not have beneficial effects on physical function .
Most studies on mood-related endpoints found no beneficial effect of testosterone treatment on personality , psychological well-being , or mood .
Testosterone products are recommended by some prescribers in response to a diagnosis or presumption of " low testosterone " ( low-T ) for cardiovascular health , sexual function , muscle weakness or wasting , mood and behavior , and cognition .
Effect of testosterone supplementation on sexual functioning in aging men: a 6-month randomized controlled trial
Serum testosterone levels decline significantly with aging and this has been associated with reduced sexual function . We have conducted a double-blind , r and omized , placebo-controlled trial to investigate the effect of testosterone supplementation on sexual function in 237 elderly men with a testosterone level < 13.7 nmol l−1 . Participants were r and omly assigned to receive oral testosterone undecanoate or a placebo for 6 months . A total of 207 men completed the study . After treatment , there were no differences in scores on sexual function between the groups . Sub analysis showed that although a baseline testosterone level in the lowest tertile was associated with significantly lower scores for sexual fantasies , desire of sexual contact and frequency of sexual contact , supplementation of testosterone did not result in improvement on any of these items in this group . In conclusion , the findings do not support the view that testosterone undecanoate supplementation for 6 months to elderly men with low-normal testosterone concentrations favorably affects sexual function
Testosterone supplementation did not show consistent benefit for cardiovascular risk , sexual function , mood and behavior , or cognition .
Studies that examined clinical cardiovascular endpoints have not favored testosterone therapy over placebo .
Testosterone is ineffective in treating erectile dysfunction and controlled trials did not show a consistent effect on libido .
Testosterone supplementation consistently increased muscle strength but did not have beneficial effects on physical function .
Most studies on mood-related endpoints found no beneficial effect of testosterone treatment on personality , psychological well-being , or mood .
Testosterone products are recommended by some prescribers in response to a diagnosis or presumption of " low testosterone " ( low-T ) for cardiovascular health , sexual function , muscle weakness or wasting , mood and behavior , and cognition .