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Hypothesized models in which GI and GL as mediating variables relate MC4R rs17782313 polymorphism, sociodemographic, and psychological parameters to MetS. Abbreviations: MC4R: melanocortin-4 receptor; GI: glycemic index; GL: glycemic load; SES: socioeconomic status; PA: physical activity; Appe: appetite; MetS: metabolic syndrome.
