The increasing prevalence of childhood obesity, its attendant morbidity, and the limited success of therapy mandate increased attention to preventive approaches. Environmental and family variables serve to identify families with children at risk for the development of obesity. Although the behavioral correlates that link these risk factors to childhood obesity remain unclear, inactivity and increased dietary intake of fat appear at this time to be the most logical foci for preventive interventions. Television viewing, which promotes both increased food consumption and reduced activity, represents a major concern at which counseling should be directed.