This study explored whether children in a Head Start programme with BMI in the overweight or obese ranges in a large county in California reduced their BMI over time in the programme. We then examined whether the Head Start staff met with families (via what is called a family service event) to discuss weight and nutrition and whether the age of enrolment into the Head Start programme was associated with movement towards healthy weight via reduction in BMI. Data came from a Head Start programme that serves a predominately Latine population, reflective of the community in which it is situated. (author abstract)