Milk can be lacking certain vitamins and minerals required for a healthy diet. In short, fortified milk means that extra vitamins and minerals are added during the process. Typically vitamins D & A are added in the United States (at least in cows milk, but also many alternative milks as well). In some developing countries children have a common problem of iron deficiency (anemia). In these locations iron and zinc and vitamin B are added to improve deficiencies and promote stronger bone health and brain function*.
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