An epidemic of obesity has been revealed by Brazilian nationwide surveys, and emphasis is being given to socioeconomic status as one of the main determinants of weight gain. Other factors also associated to obesity are influenced by socioeconomic status, such as physical activity, food consumption, and family habits. Socioeconomic status has been evaluated based on occupation, education, and income. A review of the literature on the association between socioeconomic status and obesity has been conducted, and data from a population-based survey regarding obesity among women in the city of Rio de Janeiro were also included. The occurrence of obesity among different levels of socioeconomic status as influenced by sex and age, and environmental factors that determine the possibility of access to healthy foods and to opportunities of practicing physical activity are also discussed. Finally, we discussed how family habits influence the choices of food, and how socioeconomic status can modify this effect, along with availability of foods and their prices, leading to a greater consumption of foods with high density of energy, a dietary risk factor for obesity.
socioeconomic status; obesity; food consumption
