Im an active 48 year old male. what should my testosterone level be at to be normal? i dont have as much energy as i used to which i know is normal with age but just wanted to see if there was any thing else i could do to feel more energetic. testoster

Testosterone: Isolated lack of energy is unlikely to be due to decreased testosterone. Lack of libido or erectile dysfunction MAY be related to decreased testosterone. follow up with your doctor for an evaluation if you are concerned.

Depends on lab: Different labs have different normal levels for all tests including testosterone, & even if you have a slightly low level there is not much evidence that testosterone supplementation makes makes much difference in energy levels (though it can help sex drive). Stress is a big factor in energy level for multiple reasons. Healthy eating, adequate sleep, & regular exercise help. Dr eval if concerned