Vitamin D deficiency inhibits pancreatic secretion of insulin.

@article{Norman1980VitaminDD,
  title={Vitamin D deficiency inhibits pancreatic secretion of insulin.},
  author={Anthony W. Norman and Joseph Frankel and A. M. Heldt and Gerold M. Grodsky},
  journal={Science},
  year={1980},
  volume={209 4458},
  pages={823-5}
}
The effects of a vitamin D deficiency on insulin and glucagon release was determined in the isolated perfused rat pancreas by radioimmunoassay of the secreted proteins. During a 30-minute period of perfusion with glucose and arginine, pancreases from vitamin D-deficient rats exhibited a 48 percent reduction in insulin secretion compared to that for pancreases from vitamin D-deficient rats that had been replenished with vitamin D. Vitamin D status had no effect on pancreatic glucagon secretion… CONTINUE READING