How are Nährstoffcheck and Abnehmen related?

The relationship between a nutrient check (e.g., based on DNA testing) and weight loss is scientifically weak. Many direct-to-consumer tests claim to provide personalized dietary recommendations for weight reduction, but the evidence shows that single gene variants (like FTO) cannot predict which diet works best for an individual. Strong studies, including the BMJ IPD meta-analysis (2016, n=9,563) and the DIETFITS trial, found no superior effect of genotype-based diets. A nutrient check may offer rough hints about metabolic tendencies, but individual response variability far outweighs genetic influence. Moreover, most commercial panels lack published validation. Therefore, the link between nutrient checks and weight loss is more marketing-driven than evidence-based. Effective weight loss still requires a calorie-controlled, balanced diet and regular physical activity – regardless of genotype.