I have been diagnosed with MAC for about 6 months and have not been on medications because I feel fine with no coughing. The MAC now showed up in the smear test so my pulmonologist wants to start me on the Big 3 for 7 days a week. I’ve resigned myself to this and my cousin is the nurse practitioner in his clinic so I have a support system. My question is what supplements can I not take. I’m currently taking Vitamin D, Calcium, NAC, and Immune System Support. I asked him about Pro-Biotic and he told me not to go on a crazy high dose. Sometimes that can make things worse. The doctors are not into vitamins I have found!