warum nehme ich zu trotz kaloriendefizit — what symptoms are typical?

The question of weight gain despite a calorie deficit is complex and not directly addressed in the provided contexts. Possible causes include metabolic adaptation (the body lowers basal metabolic rate during prolonged deficits), water retention due to inflammation or hormonal fluctuations (e.g., cortisol, thyroid), and inaccurate tracking of calories or activity. The gut microbiome can also influence energy extraction from food. The contexts only mention ferritin as an inflammatory marker, which may indirectly point to chronic inflammation disrupting metabolism. Without specific test results (e.g., thyroid panel, fasting insulin, cortisol day curve), the cause remains unclear. Symptoms such as fatigue, cravings, bloating, or cold intolerance may indicate such dysregulation. The evidence here is largely mechanistic and not supported by the given sources. Medical evaluation with extended lab work is recommended.