Jane Says: Consider Where Your Eggs Are From, Not Their Color. A yolk is a yolk is a yolk is a yolk, regardless of its hue. Feed mixed with marigolds or paprika lends its tone to henâs eggs. (Photo: Mike Harrington/Getty Images)
The normal range of testosterone levels in healthy adult males is between 280 to 1,100 nanograms per deciliter (ng/dL), reports the University of Rochester Medical Center. Itâs important to determine if a low testosterone level is due to normal aging or if itâs due to a disorder.
With the onset of puberty, levels rise gradually through the teen years to as high as 1,000 ng/dL. Normal adult values range from 250 to 1,100 ng/dL, with an individualâs testosterone level dropping slowly within this range beginning sometime after age 30.Different laboratories may have slightly different normal values depending on the test method used.ormal adult values range from 250 to 1,100 ng/dL, with an individualâs testosterone level dropping slowly within this range beginning sometime after age 30. Different laboratories may have slightly different normal values depending on the test method used.