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

The question of why weight loss stalls despite a calorie deficit and exercise is multifaceted. Common reasons include inaccurate calorie tracking (e.g., underestimating portion sizes or liquid calories), metabolic adaptation (the body lowers resting energy expenditure during prolonged deficits), hormonal imbalances (thyroid, cortisol), poor sleep, or insufficient training intensity. A DNA test offers limited help. While variants like FTO or TCF7L2 are linked to obesity or diabetes risk, their effect sizes are small and rarely explain a plateau. Evidence for DNA-based personalized diets is weak; many commercial tests rely on marketing rather than robust clinical trials. A test might provide general insights (e.g., carbohydrate sensitivity), but it cannot replace a thorough assessment of diet, exercise, and lifestyle. Practical steps include verifying calorie intake, adjusting macronutrient ratios (higher protein, fiber), improving sleep, managing stress, and varying exercise routines. If the plateau persists, consult a healthcare professional to rule out medical conditions like hypothyroidism or insulin resistance.