Supplements for food allergy while breastfeeding

Thankfulforwine

I am EBF and LO seems to be allergic to everything. In an effort to figure out what she is allergic to I have gone on Dr. Sears elimination diet. Since my diet is so restricted I am looking for a calcium supplement and a multivitamin to help supplement it. Unfortunately, I haven't had very much luck finding calcium or multivitamins that are free of everything I need them to be. Any advice? I need on that doesn't contain, Milk, soy, egg, wheat/gluten, nuts, peanuts and corn (the corn one is really hard to accomplish!) Anyone have any ideas? Thanks!