Body-Balance Check | Testosteron-Test: can a DNA test help?

A DNA test to predict testosterone levels, as offered in a 'Body Balance Check', has very limited scientific utility. No robust, reproducible studies show that single genetic variants influence testosterone levels enough to derive personalized recommendations. Most identified SNPs explain less than 2% of the variance. Testosterone levels are also subject to strong diurnal, age-related, and lifestyle fluctuations (sleep, diet, stress, exercise). A genetic test cannot replace clinical laboratory diagnostics (blood draw). The evidence is best classified as 'marketing' or 'mechanistic' – there are no randomized controlled trials demonstrating clinical benefit. Caveat: Without medical supervision, such a test may lead to misinterpretation or unnecessary supplementation.