Everyone should take a multivitamin. I like Rainbow Light’s Nutristart Multivitamin for infants and young children because it is so complete.
I haven’t found one that works for older kids–we get ours compounded by the nutritionist. But, any good multivitamin will contain D3 instead of vitamin D.
A probiotic we love is: GI FLORA. Here is the link to the product we use. Here is a post.
Enzymes allow your body to focus on other things besides breaking down food. Houston Neutraceuticals makes enzymes for both kids and adults have used with great success. Because enzymes are plant based and natural, if your body doesn’t need them, they will just pass through you.
Stephanie - Wow, your site is great. My five year old and I have been gluten/dairy free for a year and half now. I recently found the Vitamin Code vitamins and have switched him from the nordic naturals to it, I open the family version and dump it in his fruit and veggie juice with the eferevescent calcium. His constipation is nearly gone now, so its a really good one. Keep up the great work and good luck with your mission.