Displaying 1 results of Calcifediol Stable Isotopes Calcifediol is a vitamin D metabolite that is commonly used to treat and prevent vitamin D deficiency. Stable isotopes of calcifediol are used in medical research to study the metabolism and absorption of vitamin D in the body. These isotopes are labeled with non-radioactive isotopes of carbon, hydrogen, and oxygen, making them safe to use in human studies. Calcifediol stable isotopes are an important tool for understanding vitamin D metabolism and developing new treatments for vitamin D deficiency.