I'm taking a testosterone test via blood on Monday for free and total testosterone. I'm wondering, is there anything I should do or not do prior to taking the test to get the best and clearest reading? I already know taking it in the morning is the best time to take it, since that's when it will be at it's highest, but what else should I do or not do? Will not eating prior to taking the test help? Thank you.
- Eating will not affect your result
- Getting inadequate sleep might give a lower result since testo is synthesized more during sleep
- Refrain from heavy exercise in the days before since that might increase cortisol and give an unfavorable testosterone/cortisol ratio and a lower reading; in overtraining syndrome, one of the worst signs is a lowered testosterone
- Research has shown that testosterone increases acutely following a bout of strength training, and from my own experience I can say that doing a few sets of push ups and squats before getting tested increases the result more often than not
- Sexual abstinence increases testosterone (however, the effect is reversed and after about 10-14 days its starts decreasing). Also, physically being away from your partner increases testosterone. Being surrounded by other women also. But beware, research has shown that testosterone falls when we are with our friend's partner
- Eat 2-3 Brazilian walnuts and eggs before going to bed (they contain many nutrients necessary for testosterone production, many of which a large proportion of the population is deficient)
- Zinc supplements, 25-50mg/day, can help due to the same reason as above. Athletes and sexually active men are especially likely to be zinc deficient.
These are some factors that alter the magnitude of the reading. However, there is nothing you can do to get a "clearer" reading. Just be yourself :) If you are interested in any particular reference, I might be able to dig it up, however, googling testosterone will give you plenty more ideas about what affects testosterone levels.