The number of children in the United States who are overweight or obese has increased steadily over the past several decades. Latino children are at particular risk of becoming overweight or obese. Children who are overweight or obese have an increased risk of high blood pressure, high cholesterol, heart disease, and diabetes. Parental behaviors are thought to be important influences on children's obesity, but previous studies have only examined a narrow range of parental behaviors, and few studies have specifically focused on Latino children. There is an urgent need for further research that examines the ways in which parental eating habits and behaviors affect the rising obesity rates among Latino children. This study will focus on Mexican Americans, which is the largest Latino group in the United States. The purpose of this study is to examine whether parental and extended family members' dietary-related behaviors predict children's dietary intake and weight gain. The effects of socioeconomic status and cultural factors on parental behaviors will also be examined.