Which supplements for men over 40 have real trial evidence, which ones lost their evidence under better testing, and the dose-versus-label arithmetic that decides whether a bottle does anything at all.
An ingredient-by-ingredient safety read that corrects two things most roundups get wrong: DHEA does not raise blood pressure, and ashwagandha carries a real if uncommon liver-injury signal. Plus the prescriptions that actually decide your risk.
What actually separates TRT from a natural booster: the blood-test threshold, what the 5,246-man TRAVERSE trial found, the fertility suppression most comparisons omit, the real cost structure of a year on each — and the prescription middle path neither side frames as an option.