The article cited is another example of "It's all in the wording".  By saying that breastfed infants should get supplemental Vitamin D and leaving it at that, the implication is that the problem lies in an inadequacy of breastmilk.  However, we know this is not the case.  A more accurate wording might be:
"Many people today do not get an adequate amount of Vit D.  Causes may include, but are not limited to: living in a part of the world with less sunlight exposure than ones genetic ancestry was programmed for; less time spent out of doors; and pollutants etc, it the sky/air that are filtering out some of the Vitamin D one would otherwise greceive from sunlight.  As a result, many recommend that infants especially receive some form of Vitramin D supplement.  For infants receiving formula (or artificial milk or whatever one calls it) Vitamin D is added in the manufacturing process.  For breastfeeding infants, it may be given as a vitamin supplement."
This does not make the beastmilk appear as the culprit, but merely explains that , if extra Vit D is needed, it is given to the infant in different ways depending on the feeding method.

Winnie

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