Obese men are encouraged to lose weight. With their doctor, they can work on making healthy eating decisions and start an exercise program that is appropriate for their needs and health status.
Recent research from Ireland suggests that such lifestyle changes may benefit men with low testosterone. In a report presented at the Endocrine Society’s 2012 annual meeting, researchers studied a subgroup of 293 middle-aged overweight men with prediabetes. (Prediabetes occurs when a person has higher-than-normal blood sugar levels, but those levels aren’t high enough to be considered diabetes.)
Twenty percent of the men in this group had low testosterone. For one year, they exercised for 150 minutes each week and consumed fewer calories and less fat. At the end of one year, only 11% of the men still had low testosterone. On average, the men’s testosterone levels increased about 15%.
It should be noted that these findings show an association between weight loss and increased testosterone, but do not prove that the increase was caused directly by the weight loss.
These findings are considered preliminary until they are published in a peer-reviewed journal.