Evidence check: FUT2 in the context of Abnehmen

The FUT2 variant rs1047781 determines secretor status, which influences gut microbiome composition. Some studies suggest a link between microbiome and body weight, but direct evidence for FUT2 and weight loss is weak. The provided context discusses infection risk and general gut health, not weight management. No clinical trials support weight loss strategies based solely on FUT2. The effect is likely small and overshadowed by diet, lifestyle, and other genes. Claims from direct-to-consumer tests about weight loss based on FUT2 are not evidence-based. Evidence is mechanistic/unclear.