welche werte bei schilddrüsenunterfunktion — can a microbiome test help?

Hypothyroidism is diagnosed through standard blood tests: TSH, free T4 (fT4), sometimes free T3 (fT3), and thyroid antibodies (TPO-Ab, Tg-Ab). A microbiome test cannot replace these. However, emerging research suggests the gut microbiome may influence thyroid function via immune modulation (especially in Hashimoto's thyroiditis) and nutrient absorption (iodine, selenium). Some studies have found associations between bacterial taxa and TSH levels, but the evidence is mostly exploratory and not yet clinically actionable. Microbiome tests are often marketed with exaggerated claims. If you suspect hypothyroidism, consult a doctor for proper blood work. A microbiome test might provide supportive insights into gut health, but it is not diagnostic for thyroid disorders. Its utility is limited by high inter-individual variability and lack of standardized protocols. Evidence: mixed.