Second, Warfarin, a vitamin K inhibitor, produces a toxicity profile almost identical to that of vitamin D, but does not increase serum calcium levels.81 Third, one group used vitamin D to produce calcium deposition in the kidneys of chickens at doses that did not lead to
hypercalcemia.104 This finding is consistent with a case report of four post-menopausal women who were taking undetermined doses of vitamin D without their knowledge in the form of supplements that appeared to be contaminated with large amounts of vitamin D2: these patients had abnormally high vitamin D levels, three times the calcium in their urine as is normal, and appeared, albeit inconclusively, to have
associated bone loss.
Taking too much calcium is
associated with
hypercalcemia, calcium buildup in soft tissues, trouble absorbing iron and zinc, and many other consequences.