Assertion: vitamin d | /r/AtLocation | plant
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text: Vitamin D as ergocalciferol (vitamin D 2 ) is found in some plants and in salmon, sardines, mackerel, tuna, cod liver oil, shiitake mushrooms, egg yolk, and fortified foods.1, 2, 3 Deficiency may result from decreased absorption (such as in cystic fibrosis, celiac and Crohn diseases, and drug interactions), increased catabolism (caused by anticonvulsant and antiretroviral therapy and some immunosuppressant drugs), and hepatic and renal failure, as well as from inadequate intake.1