One or another vitamin or mineral has been the “nutrient du jour” for some time. Today, it’s vitamin D. Vitamin D can be found in a variety of foods, such as fatty fish (tuna, mackerel and salmon), milk, yogurt, orange juice and cereals, which are the best sources. Margarine, beef liver, egg yolks and some cheeses provide some vitamin D. In the U.S. and Canada, infant formula must be fortified with vitamin D and many breast-fed babies require supplementation.
Bread and bakery products made with vitamin D yeast also are good sources of this essential vitamin. But while enriched grains must be fortified with thiamine, niacin, riboflavin, folic acid and iron, fortification with vitamin D (and calcium) is optional.