Hi Ann,
I don't know what part of the country you and this mom live in, but it does
matter! Dark-skinned moms who swaddle or otherwise completely cover their
infants (my Muslim moms particularly) and who live in northern
climes...those definitely need supplements. In Georgia, I encourage a
little sunbathing in indirect light with their tummies exposed...that's all
they need! Very dark-skinned babies and moms...well, I'd have to probably
supplement them as well.
Kreiter, S., Schwartz, RP., Kirkman, HN Jr., Charlton, PA., Calikoglu, AS.,
Davenport, ML. (2000). Nutritional rickets in African American breast-fed
infants. Journal of Pediatrics. 137(2):153-7, 2000 Aug. (22 ref), 137(2),
153-157.

There is more recent stuff as well; I'll keep looking!
Better safe than sorry! Good luck with this sad case...
Maeve

Maeve Howett, CPNP, IBCLC, PhD(c)
In sunny ATL, GA!

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