Check out the Crohn’s and Colitis Foundation of America (CCFA) website for the most up to date information. For most people and particularly pediatric patients, an individualized approach is necessary. While getting ideas from other patients and parents is useful, you need to be fully informed to make the best choices for your child.
There are also forums specifically for children with IBD and their families. There are a number of members here with young children with IBD.