welche werte bei schilddrüsenunterfunktion — what can you do yourself?

In hypothyroidism, key lab values are: elevated TSH (>4.0 mU/l), low free T4 (<9 pmol/l), and possibly low free T3 (<3.8 pmol/l). Diagnosis and treatment require a physician – home tests are not diagnostic. What you can do yourself: Ensure adequate iodine intake (e.g., iodized salt, moderate seaweed), but avoid excess as it can worsen thyroid function. Selenium (e.g., 1–2 Brazil nuts/day) supports T4-to-T3 conversion. Zinc and iron are also important; deficiencies impair thyroid function. Avoid raw goitrogenic foods (cabbage, broccoli, soy) – cooked they are safe. Regular exercise and stress management may help hormone balance. Crucially, these measures do not replace medication (levothyroxine). Have your levels checked by a doctor and discuss supplements beforehand. Evidence for self-care is moderate – many recommendations come from observational studies and clinical practice.