[Messages about physical activity and nutrition offered by Quebec mass media?].

As social elements of our environment, mass media are regarded as determinants of individual and population beliefs, social norms and habits. Since it is recognized that they influence population health, this study aims to obtain a better portrait of Quebec media content regarding physical activity and nutrition messages on a public health level. First, we analyzed the content of fictional television shows (n = 1 3) and advertisements broadcast during those shows (n = 68).