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What causes vitamin D deficiency

Vitamin D‘s most important role is to regulate calcium and phosphorus levels and promotes absorption of these minerals for growth of bones and teeth. supports immune function and regulates blood pressure.
Vitamin D regulates the amount of calcium in your blood and makes sure you always have enough.
Researches have proved that Vitamin D also plays a role in a lot of other body functions. It also involved in insulin secretion and it may help prevent cancer, especially colon cancer.

Vitamin D can be produced in the skin upon exposure to sunlight or must be obtained from the diet.
vitamin-d-deficiencyWhat causes vitamin D deficiency?

  • First of all inadequate dietary intakes. Limited sun exposure, kidney or liver disease, and alcoholism also cause vitamin D deficiency.
  • At greater risk are also elderly, dark-skinned, obese people, or those with inflammatory bowel disease and fat-malabsorption syndromes (celiac disease and cystic fibrosis).
  • If you have kidney or liver disease you can’t convert Vitamin D3 into its more active forms.
  • Some drugs such as cholestyramine (Cholybar® or Questran®) or colestipol (Colestid®) to lower your cholesterol also can cause vitamin D deficiency as these drugs block absorption of Vitamin D and other fat-soluble vitamins.
  • Taking corticosteroid drugs such as cortisone, prednisone, or dexamethasone for allergies, asthma, arthritis, or some other health problem also can deplete Vitamin D3 level and increase risk of vitamin D deficiency.
  • Anticonvulsant drugs such as phenytoin (Dilantin®) or Phenobarbital interfere with how you use your Vitamin D.
  • Strict vegetarian or vegan also falls in group of risk vitamin D deficiency. There’s very little Vitamin D in plant foods. If you don’t drink milk and also don’t get outside much, you—and your vegan kids—might not be getting enough Vitamin D.
  • Alcohol also can causes vitamin D deficiency as it blocks your to absorb Vitamin D in intestines and store it in liver.

As you see there are a lot of causes for vitamins D deficiency, so talk to you doctor before taking vitamin D supplement.

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