mom looking for help?

Hi decide to re wright my intro and make it short I am looking for any suggestion in creating a healthy meal balance with fibre Meal plans want to do this with food not supplements and know that adding way to much fibre at 1 meal can cause issues my son has Autism and with medical issues we need to start here I heard about fitness pal and love that I can wright everything in from his meals and know what I need to ad more of or less and know know wonder if there any groups to go to Thanks