warum nehme ich nicht ab trotz kaloriendefizit und sport — can a microbiome test help?

Not losing weight despite a calorie deficit and exercise is frustrating and common. Possible reasons include metabolic adaptation—your body lowers its resting energy expenditure during prolonged deficits. Inaccurate calorie tracking (e.g., underestimating portions, liquid calories) and overestimating exercise burn are frequent issues. Hormonal factors like hypothyroidism, insulin resistance, or elevated cortisol from chronic stress can hinder fat loss. Poor sleep and insufficient protein intake also impair metabolism. Can a microbiome test help? Current evidence is limited. While gut bacteria composition correlates with body weight in some studies, no validated, actionable recommendations exist for weight loss based on microbiome testing. Most direct-to-consumer tests lack clinical validity and are marketed with overblown claims. Instead, focus on proven strategies: adequate protein (1.6–2.2 g/kg body weight), resistance training to preserve muscle, precise calorie tracking, stress reduction, and 7–9 hours of quality sleep. Consult a doctor to rule out medical conditions (thyroid, diabetes, hormonal imbalances). Microbiome tests remain experimental for weight management and are not a substitute for evidence-based lifestyle changes.