Saturday, June 9, 2018

Vitamin D for normal bone

Vitamin D comes from two sources in humans; it could either be synthesized in form of vitamin D3 (cholecalciferol) under the influence of solar UV-B radiation in the epidermis, or be absorbed from the diet or from supplements and food additives, which in some countries may contain vitamin D2 (ergocalciferol).

This vitamin is necessary for normal tooth and bone formation. Vitamin D contributes to bone health by regulating calcium absorption. Vitamin D is crucial for maximizing gut absorption of calcium via vitamin D dependent Ca receptors. It is estimated that adequate vitamin D status increases Ca absorption to 30–40% of intake compared with only 10–15% absorption without adequate vitamin D.

Adequate vitamin D is necessary for absorption of calcium. Vitamin D is made in the skin after exposure to sunlight. Estimates include 5-16 minutes of sun exposure 3 times a week on the face, hands, and arms will meet vitamin D needs.

The recommended adequate intake (AI) of vitamin D for children and adults up to 50 years is 200 IU, whereas the recommended AI for adults 51–70 years and 71+ years is 400 IU and 600 IU, respectively.
Vitamin D for normal bone
Related Posts Plugin for WordPress, Blogger...

Most Popular Articles

Articles around the world

  • Black mold otherwise known as “Aspergillus niger” often occurs on fruits that have become moist on the surface or broken; or it may occur on other products...
  • Steam can be defined as: “Water vapor at the boiling point temperature for a given corresponding pressure.” For steam to make mixture rose, two conditions ...
  • The Borden Company, originally named the New York Condensed Milk Company and later the Borden Condensed Milk Company, was founded in 1857 by Gail Borden (1...

SAF-DYNAMICS of Food Science and Technology

Feed from World of Nutrition