wie kann man den cortisolspiegel messen — can a microbiome test help?

Cortisol is reliably measured through blood, saliva, urine, or hair analysis – all clinically validated methods. A microbiome test cannot directly measure cortisol. While there is emerging research on the gut–brain axis and its influence on the stress response, current evidence does not support using microbiome composition as a proxy for cortisol levels. Some commercial microbiome tests claim to assess 'stress' or 'cortisol' based on indirect biomarkers or correlations, but these lack clinical validation and individual accuracy. If you need to know your cortisol status, standard laboratory testing with medical interpretation is the appropriate route. Be cautious of marketing claims that overstate the relevance of gut bacteria for hormone measurement.