What role does Östradiol play in Abnehmen?

Estradiol (E2) influences energy balance and fat distribution, particularly in women. Declining estradiol levels, as during menopause, are associated with increased visceral fat and reduced resting metabolic rate. Mechanistically, estradiol acts via estrogen receptors (ERα, ERβ) on adipocytes, muscle, and liver cells, modulating insulin sensitivity and lipolysis. However, evidence for a direct 'fat-burning' effect of estradiol is weak. Observational studies suggest that hormone replacement therapy (HRT) in postmenopausal women may attenuate weight gain, but it is not recommended for weight loss per se. The effect is modest and individual. In men, estradiol (aromatized from testosterone) also plays a role, but excess can promote fat accumulation. Bottom line: estradiol is one piece in the complex puzzle of weight regulation, not a standalone solution. Measuring hormones without clinical indication is not useful. Caveat: hormonal interventions for weight loss carry risks and should only be considered under medical supervision.