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Thu., Nov. 1, 2018 Some health care providers are prescribing a mega-dose, 50,000 IU vitamin D taken once a week for six to eight weeks. (Shutterstock) ...
For people with a severe vitamin D deficiency confirmed in blood tests, some health care providers are prescribing a mega-dose: 50,000 IU vitamin D taken once a week for six to eight weeks.
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