Vitamin D “priming”

We have recently put forward the hypothesis, that an early intra-uterine may be priming the vitamin D system – I will soon send also another abstract to the forthcoming Vitamin D Workshop.
Today I found a new paper that may also support this view although it examines vitamin D toxicity:

Recent cases of intoxication relate to errors in manufacturing, formulation or prescription, involve high total intake in the range of 240,000 to 4,500,000 IU and present with severe hypercalcemia, hypercalciuria or nephrocalcinosis. However, mild hypercalcemia and hypervitaminosis using currently recommended doses has been reported in infants with rickets.

My interpretation is that children adjusted to live with very low vitamin levels get even mild hypercalcemia with recommended vitamin D doses, yea, yea.