warum nehme ich nicht ab obwohl ich im kaloriendefizit bin — can a microbiome test help?

The question of why weight loss stalls despite a calorie deficit is multifaceted. A simple calorie deficit does not guarantee weight loss due to metabolic adaptation, hormonal influences (e.g., cortisol, insulin), sleep quality, inflammation, and individual nutrient absorption. A microbiome test can offer complementary insights but not a definitive cause. Research indicates that gut microbiota affect energy extraction, appetite regulation, and inflammatory status. However, no standardized, clinically validated microbiome profiles for 'weight loss' exist. Most commercial tests (e.g., from MyBody-X) provide a descriptive snapshot of bacterial diversity, not a diagnosis or actionable plan. The evidence is largely mechanistic, based on animal studies or small human trials; large randomized controlled trials are lacking. Reference ranges for adults are inconsistent. Thus, a microbiome test can serve as an exploratory tool but does not replace medical evaluation of thyroid function, insulin resistance, or eating behavior. Without accompanying lifestyle analysis, its utility is limited. Beware of overinterpreted results that may lead to unnecessary supplement purchases.