warum nehme ich trotz sport und kaloriendefizit nicht ab — what symptoms are typical?

The question of why weight loss stalls despite exercise and a calorie deficit is multifaceted. The provided context does not contain specific information on this topic. Common reasons include metabolic adaptation (the body lowers its resting energy expenditure), water retention (e.g., from muscle inflammation after new exercise), hormonal shifts (thyroid, cortisol, insulin), and inaccurate tracking of calories or activity. Typical symptoms are a plateau on the scale, increased hunger, fatigue, irritability, and poor sleep. Inadequate protein intake or insufficient recovery can also hinder fat loss. It's important to note that a calorie deficit does not need to be identical every day; the body adapts over time. Underlying medical conditions like hypothyroidism, insulin resistance, or PCOS should be ruled out by a physician. The evidence for these points is well-established in general nutrition science but not derived from the given context. Therefore, evidence is marked as 'unclear'.