The body mass index (BMI) of diverse, low-income fifth grade students (n = 36) was regressed on physical activity (Child Adolescent Activity Log), percentage dietary fat (Food Habits Questionnaire), and the Food/Activity Parenting Practices Questionnaire. The model explained 50% of the variance in student BMI, adjusted R(2) = .50, F (4, 19) = 6.84, p = .001. Students accurately perceived their weight status. Students' perception of parenting strategies, along with dietary fat, was significantly associated with their BMI. Parent's (n = 14) BMI, not the child's, was associated with the strategies they used. Three parents tested an online authoritative parenting program. Further research is needed.