Information about nutrition: http://www.cnpp.usda.gov/
The food pyramid: http://www.choosemyplate.gov/
Information about helping your overweight child:
http://win.niddk.nih.gov/publications/over_child.htm
Information about helping your child: healthy eating and physical activity:
http://www.win.niddk.nih.gov/publications/child.htm
http://www.nhlbi.nih.gov/health/public/heart/obesity/wecan/index.htm
Calcium in food: http://ods.od.nih.gov/factsheets/Calcium-HealthProfessional/
http://www.win.niddk.nih.gov/publications/child.htm#calcium
Iron in food: http://ods.od.nih.gov/factsheets/Iron-HealthProfessional/
Healthy snacks, less than 100 calories:
http://www.nhlbi.nih.gov/health/public/heart/obesity/wecan/downloads/hundredcalories.pdf