What do studies say about FTO Senioren?

The question about FTO and seniors is specific, but the provided contexts contain no direct studies on this topic. Generally, the FTO gene is one of the most replicated risk factors for obesity, but with small effect sizes (about 0.3–0.4 kg/m² per risk allele). In seniors, the influence may be attenuated due to age-related changes in metabolism, muscle mass, and hormonal status. Some studies suggest that the FTO effect on BMI weakens in older adults, possibly because other factors (diet, physical activity, comorbidities) become more dominant. There is no robust evidence that FTO variants directly predict aging or health outcomes in the elderly. The evidence is rated as 'human-moderate' because the association with BMI is well-established, but the specific application to seniors is not sufficiently studied. Consumer DNA tests analyzing FTO provide only suggestive information about a genetic predisposition that can be modified by lifestyle. Clinical use for risk stratification in older adults is not validated.