I'm very concerned with my 7yr. old step-daughter. When with us, 2 weekends a month, I try to provide very balanced healthy meals, limiting the sugar and processed foods, and give her a multi-vitamin. The problem is the other 26 days of the month at her mother's where she eats mostly fastfood, candy, chips, soda and sugary juice paks, no vitamins to supplement, not made to eat any vegetables, fruits or meat if she doesn't want it.