The health care pendulum appears to have taken a bad swing to the extreme with vitamin D. Too many Americans may be taking unnecessary tests to see if they’re deficient of this important nutrient. Too many of us are taking unneeded amounts of it.
Federal experts report that blood tests for vitamin D among Medicare beneficiaries, most 65 and older, increased 83-fold from 2000 to 2010. Testing rates rose 2.5-fold from 2009 to 2014 among those with commercial insurance. Among a recent sample of 800,000 patients in Maine, nearly one in five had at least one test for blood levels of the vitamin over a three-year period. More than a third got two or more tests, often for vague complaints like malaise or fatigue. Labs and doctors are telling patients who have undergone tests and who have readings in the normal range of 20 to 30 nanograms of the vitamin per milliliter of blood that they suffer a deficiency.
This all is leading to what some experts are terming a “pandemic” of over-testing, faulty diagnosis, and excess consumption of a nutrient, based on sparse evidence and misplaced belief that, as the New York Times reports, “vitamin D can help turn back depression, fatigue, and muscle weakness, even heart disease or cancer. In fact, there has never been widely accepted evidence that vitamin D is helpful in preventing or treating any of those conditions.”