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Date: | Wed, 1 Mar 2000 06:11:11 -0500 |
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If I recall, this study, done in Cincinnati, states that with full exposure
of the baby in summer (just diaper), 30 minutes a week of sunlight will give
adequate vitamin D levels. With just face showing in winter 90 minutes.
Remember though, babies get most of their vitamin D in utero from the
mother, and like iron, they get adequate stores for several months. Only if
the mother is vitamin D deficient is there a concern for the baby's stores.
Greer FR, Marshall S. Bone mineral content, serum vitamin D metabolite
concentrations, and ultraviolet B light exposure in infants fed human milk
with and without vitamin D2 supplements. J Pediatr 1989;114:204-12
Jack Newman, MD, FRCPC
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