What Supplements Do Take? in Coping with Celiac Disease Posted June 11, 2015 · Report to Admin I wrote this down a while ago - celiac deficiencies : Vitamin D, B 12, B9, A, E, K , Iron , zinc, and magnesium. While healing I made sure to get these but now I just take a multi about every other day . Occaisionally take magnesium. I eat about 80% vegetarian. Lots of raw for max enzymes and vitamin/mineral content. When needed I take valerian and chamomile tea for anxiety. I take melatonin when needed for insomnia.