was ist tsh wert — can a microbiome test help?

TSH (thyroid-stimulating hormone) is a blood biomarker for thyroid function. A microbiome test analyzes gut bacteria composition and cannot measure TSH directly. There is emerging research on the gut–thyroid axis: certain bacteria may affect iodine and selenium absorption, as well as T4-to-T3 conversion. However, the evidence for a clinically meaningful impact on TSH levels is weak, mostly from animal models or small human studies. Therefore, a microbiome test cannot replace a blood test for thyroid assessment. If you want to know your TSH value or evaluate thyroid health, consult a physician and get a standard lab test. Consumer microbiome tests currently have limited utility for thyroid-related questions, and marketing often overstates their relevance. Evidence: unclear. Sources: none directly from provided context.