Socioeconomic status is frequently considered to be a potential confounder or a risk factor for overweight and obesity in health studies. Although there is general agreement that SES is a multidimensional construct, scholars tend to include only one socioeconomic status component in their predictive models and few researches have provided an explicit theoretical and methodological rationale for the choice of indicators (Ball et al., 2002). Socioeconomic status is a measure of an individual’s position within society that is determined by the access to collectively desired resources (Oakes and Rossi, 2003). The SES concept has emerged from the class approach to social structure analysis, primarily developed by Karl Marx and Max Weber, and, consequently, is widely used as a synonym to “social position”, “socioeconomic position” or “social class” (Liberato et al., 1988). From Marx’s perspective, social class is identified as a group of people sharing common relations to the means of production that support their wellbeing (Marx, 1981). In his work, Marx focused on two antagonistic classes of capitalists and workers to demonstrate uneven distribution of material resources and exploitation power, also rooted in economic relations, within society. Hence, in the Marxian framework, social position could be treated as a unidimensional construct. Weber extended Marx’s analytical scheme by introducing additional components of social position, “status” and “party”. Status, or prestige,