Vitamin D helps to maintain calcium concentrations in the blood for bone mineralization by increasing the rate of calcium absorption in the intestine.
Calcium is most typically related to bone production and metabolism as a nutrient. Because of decreased active calcium absorption during vitamin D deficient situations, bone metabolism suffers severely.
Vitamin D's primary role in calcium internal regulation is to improve calcium absorption from the gut. Calcium is taken via both an active transcellular mechanism that requires energy and a passive paracellular pathway via gap junctions.
Learn more about the active role of Vitamin D for Calcium here:
https://brainly.com/question/15503096
#SPJ12