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Vitamin D Helps Build Bones

Wednesday, 01 Feb 2017 04:11 PM Current | Bio | Archive

Bone building largely occurs with the interaction between two cells: osteoblasts and osteoclasts.

Osteoblasts create new bone by laying down a matrix consisting of collagen and other factors that stimulate the remineralization of bone.

Osteoclasts, on the other hand, remove the bone matrix by releasing substances that help it to resorb.

Maintaining optimal bone strength is a dynamic process whereby old and injured bone is removed by osteoclasts and new bone is formed by the osteoblasts.

If everything is working well, a new skeleton is formed every 7 to 10 years.

Our bodies have been designed to replace old and injured bone on a daily basis.

But in order to accomplish this remarkable feat, we need to get an adequate supply of vitamins and minerals from food.

There are many factors that go into building healthy bones. Vitamin D is crucial for this process.

But vitamin D is not really a vitamin. It is better classified as a hormone because, unlike all other vitamins, it can be manufactured in our own bodies in a chemical reaction precipitated by sunlight on the skin.

Other vitamins cannot be manufactured in the body. In order to prevent deficiencies of other vitamins, they must be obtained from the diet.

After being produced in the skin, vitamin D is released into the bloodstream and transported to the kidneys, where it is converted to its active hormone calcitriol.

Eventually, calcitriol binds to the vitamin D receptors that are found in almost all bodily organs, including the brain, heart, skin, prostate, breast, ovaries, and testicles.

Calcitriol also binds to vitamin D receptors in the intestines, kidneys, and parathyroid glands, helping the body maintain normal calcium absorption and normal calcium serum levels.

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Bone building largely occurs with the interaction between two cells: osteoblasts and osteoclasts.
osteoblasts, osteoclasts, vitamin D, calcitriol
Wednesday, 01 Feb 2017 04:11 PM
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