Vitamin D 25 Hydroxy Vs Vitamin D 1 25 Dihydroxy
Vitamin D is an essential nutrient that plays an important role in our health. It is responsible for maintaining healthy bones, teeth, and muscles. It also helps in regulating the immune system and reducing inflammation in the body. Vitamin D can be obtained from sunlight, food, and supplements. However, there are different forms of vitamin D, and they have different functions in the body. In this article, we will discuss the differences between two forms of vitamin D: Vitamin D 25 Hydroxy and Vitamin D 1 25 Dihydroxy.
Vitamin D 25 Hydroxy
Vitamin D 25 Hydroxy, also known as calcidiol, is the major circulating form of vitamin D in the blood. When we consume vitamin D, it is converted into Vitamin D 25 Hydroxy in the liver. This form of vitamin D is inactive and needs to be converted into its active form, Vitamin D 1 25 Dihydroxy, to be used by the body.
Vitamin D 25 Hydroxy is used to measure the level of vitamin D in the blood. It is the most accurate way to determine if a person has a deficiency or sufficiency of vitamin D. The normal range of Vitamin D 25 Hydroxy in the blood is between 20-50 ng/mL. If the level is below 20 ng/mL, it indicates a deficiency of vitamin D, and if it is above 50 ng/mL, it could be toxic.
Vitamin D 1 25 Dihydroxy
Vitamin D 1 25 Dihydroxy, also known as calcitriol, is the active form of vitamin D. It is produced when Vitamin D 25 Hydroxy is converted into its active form by the kidneys. Vitamin D 1 25 Dihydroxy plays an important role in calcium absorption, bone health, and immune system regulation.
Vitamin D 1 25 Dihydroxy is regulated by a hormone called parathyroid hormone (PTH). When the level of calcium in the blood is low, PTH stimulates the production of Vitamin D 1 25 Dihydroxy to increase calcium absorption from the intestine and reabsorption from the bones.
Differences between Vitamin D 25 Hydroxy and Vitamin D 1 25 Dihydroxy
The main difference between Vitamin D 25 Hydroxy and Vitamin D 1 25 Dihydroxy is their functions in the body. Vitamin D 25 Hydroxy is the inactive form of vitamin D, and its main function is to measure the level of vitamin D in the blood. On the other hand, Vitamin D 1 25 Dihydroxy is the active form of vitamin D, and its main function is to regulate calcium absorption, bone health, and immune system function.
Another difference between the two forms of vitamin D is their normal range in the blood. As mentioned earlier, the normal range of Vitamin D 25 Hydroxy is between 20-50 ng/mL, while the normal range of Vitamin D 1 25 Dihydroxy is between 18-72 pg/mL.
Conclusion
Vitamin D is an important nutrient that plays a vital role in our health. Vitamin D 25 Hydroxy and Vitamin D 1 25 Dihydroxy are two different forms of vitamin D with different functions in the body. Vitamin D 25 Hydroxy is the inactive form of vitamin D and is used to measure the level of vitamin D in the blood, while Vitamin D 1 25 Dihydroxy is the active form of vitamin D and is responsible for regulating calcium absorption, bone health, and immune system function. It is important to maintain adequate levels of both forms of vitamin D for optimal health.