Aug 20, 2013 Last time I received a blood test for testosterone, my levels came back at 391, which is pretty low for my age and lifestyle. However, it's basically right on the borderline for treatment (which is between 250-350). If I have to go back for another blood test, I'd like to lower my testosterone levels as much as possible so the doctor can't say something like "Well, your levels are low, but technically within the normal range, so I have no idea whether treating you would be appropriate" which is essentially what one endo said last time. I'm not looking to be put on TRT, I actually just want to try to raise my levels naturally, but I do want to make sure I am treated next time I go in. I know that low sleep / low calories will do it... anything else I can do?