Calcium and phosphorus homeostasis and regulation of bone mineralization are considered the classical role of vitamin D.
Moreover, vitamin D is recognized for a significant immunomodulatory effect, and that vitamin D deficiency may play a role in the development of chronic inflammatory conditions such as inflammatory bowel disease IBD.
Evidence suggests that Vitamin D plays a role in the maintenance of the intestinal epithelial barrier (with deficiency promoting increased intestinal permeability and translocation of bacteria into colonic tissue).
In conclusion, Patients with IBD should have vit D concentrations tested and monitored, and supplementation with oral Vitamin D3 or Vitamin D2 should be initiated if deficiency exists.
A health warning, there are many health risks from excessive vitamin D intake. Always work closely with your healthcare team for a personalized assessment.