expert advice MORE Vitamin D Deficiency Q: My son (16 months) is
highly allergic to milk/milk protein. I am concerned he may
become deficient in vitamin D, as I live in Ohio and it is
cloudy for most of the winter months. How can I ensure that he
will not get rickets? How much sun exposure is required per week
to get adequate amounts of vitamin D? Are there any other
potential sources of the vitamin? A: Just as you suggested, most
children in this country get a regular supply of vitamin D from
the milk that they drink. Since the 1950s, almost all milk has
been fortified with vitamin D, and just one cup a day is plenty
of Vitamin D for an average child. (There is no vitamin D in
other milk products like cheese, yogurt and ice cream.) The
other way that your body gets vitamin D is to actually make it.
The ultraviolet light from the sun goes through the skin and
helps to produce a form of vitamin D in your body. Children who
don't get enough sun exposure don't make much vitamin D and can
become deficient. This i