Vitamin D deficiency or insufficiency |
Renal calcium “leak”/idiopathic hypercalciuria |
Hypercortisolism/Cushing’s syndrome and glucocorticoid therapy |
Chronic gastrointestinal disease (celiac disease, Crohn’s disease, hepatobiliary disease, short gut syndrome, lactose intolerance) |
Multiple myeloma or MGUS |
Hyperthyroidism |
Alcoholism, tobacco abuse |
Hyperparathyroidism |
Hypogonadism |
Chronic immobilization, neuromuscular disease, stroke |
Rheumatoid Arthritis |
Type I > Type II diabetes |
Chronic renal insufficiency |
Chronic antidepressant, proton pump inhibitor, thiazolidinedione use |
Hemochromatosis, metal intoxication/chronic low – level cadmium exposure |
Hereditary collagen disorders |