Is TSH useful for Abnehmen?

The question of whether TSH (thyroid-stimulating hormone) is useful for weight loss requires a nuanced answer. TSH regulates thyroid function. Overt hypothyroidism (elevated TSH) slows metabolism and can cause weight gain; in such cases, levothyroxine therapy normalizes TSH and may increase resting energy expenditure, aiding weight loss. However, for subclinical hypothyroidism (mildly elevated TSH, normal free hormones), the effect on body weight is small and often clinically insignificant. In euthyroid individuals (normal TSH), further lowering TSH provides no proven benefit for weight loss – and overtreatment can induce hyperthyroidism with risks like palpitations, muscle wasting, and osteoporosis. Evidence for TSH as a standalone weight-loss biomarker is weak. Instead, calorie balance, macronutrient composition, physical activity, and sleep are the primary drivers. TSH testing is warranted if thyroid dysfunction is suspected, but not as a routine 'weight loss marker.' In summary: TSH is only useful for weight loss in cases of overt hypothyroidism; in healthy individuals, its utility is not supported by evidence.