At what age should a man start taking testosterone supplements? The answer depends on lab results and symptoms, not a number
While testosterone levels typically decline by about 1% per year after age 30, the decision of **at what age should a man start taking testosterone supplements** is not dictated by a specific number on a birthday cake. Instead, it hinges on a combination of persistent symptoms, clinical evaluation, and confirming lab results, as age-related decline does not always require medical intervention.