Normal testosterone levels in men typically fall within a range that varies by age and health. The normal range is often measured in nanograms per deciliter (ng/dL). For adult males, this range generally fluctuates between 300 ng/dL to 1,000 ng/dL or higher, with natural decreases occurring with age. It's essential to consult a healthcare professional for specific results and interpretation based on individual factors such as diet, health conditions, and lifestyle. | #kompetenz