Myths vs facts: BDNF and Abnehmen

The question about myths vs. facts regarding BDNF and weight loss is not directly addressed in the provided context. The snippets cover other genes (MTNR1B, ADRB2/3) and general limitations of consumer DNA tests. Therefore, the answer relies on general scientific knowledge. **Myth:** A single BDNF SNP (e.g., rs6265, Val66Met) determines your ability to lose weight. **Fact:** BDNF is involved in energy homeostasis and appetite regulation, but the effect of common variants is small and not clinically predictive. Weight loss depends on caloric intake, physical activity, sleep, and polygenic background. Evidence is mostly mechanistic (animal models) with moderate human observational data. No validated intervention based on BDNF genotype exists. **Safety note:** Avoid overhyped supplements claiming to boost BDNF for weight loss. Evidence: mechanistic/human-moderate.