Julie Donaldsonvitamin D, VDR, Vitamin D Receptors, autophagy, ROS, reactive oxygen species, pathogens, toxins, methylation, detoxification, histamine, mast cells, mast cell activation, mast cell degranulation, Th 1, Th 2, immune system, innate immune response, Th2 dominance, gut, dysbiosis, intestinal barrier, tight junctions, leaky gut, WBCs, white blood cells, bacteria, viruses, GI inflammation, free radicals, sneezing, wheezing, diarrhea, headaches, nausea, itching, skin flushing, mood swings, hives, joint aches/pains, histamine clearance, blood tests, personalized nutrition, individualized testing, 25-hydroxy, 1, 25-OH, butyrate, antioxidants, Julie Donaldson, oxidative stress, hollow spaces, sinuses, lungs, bladder, skin, inflammasome, sunlight, interferon gamma, inflammation, chronic illness, vitamin D synthesis, inflammatory cytokines, Th1, Th2, mutations, epigenetics, calcium, calcium absorption in the gut, autoimmune disease, psoriasis, diabetes, lupus, MS, rheumatoid arthritis, IBD, inflammatory bowel disease, fibroids, lymphatic memory cells, Th17, Th23, self-tissue