Information on BMI:
http://www.cdc.gov/healthyweight/assessing/bmi/index.html

Healthy Eating for a Healthy Weight:
http://www.cdc.gov/healthyweight/healthy_eating/index.html

Physical Activity for healthy weight:
http://www.cdc.gov/healthyweight/physical_activity/index.html

Tips for Parents:
http://www.cdc.gov/healthyweight/physical_activity/index.html