what foods are vitamin d
Egg yolk, Swiss cheese, sardines and beef liver also naturally contain some vitamin D. All milk sold in the United States is fortified with vitamin D, according to the University of Maryland Medical Center. Yogurt, margarine, breakfast cereals and other foods may also be fortified with the vitamin.ll milk sold in the United States is fortified with vitamin D, according to the University of Maryland Medical Center. Yogurt, margarine, breakfast cereals and other foods may also be fortified with the vitamin.