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Vitamin D deficiency is a lack of a sufficient amount of vitamin D in the body needed for optimal health. Vitamin D deficiency is far more common than once believed. Vitamin D deficiency can result in rickets, osteomalacia, osteoporosis and increase the risk for other potentially serious conditions.
Vitamin D is essential for many aspects of health, including the absorption of calcium and phosphorus from food, which is vital for healthy bones. Vitamin D deficiency can negatively affect the development and growth of cells, bones and teeth and hormone regulation. Vitamin D deficiency can also affect the nervous system and the immune system.
Vitamin D deficiency is caused by decreased exposure to the sun, an inability of the body to absorb vitamin D, or a lack of vitamin D in the diet. Vitamin D deficiency can also be due to a decreased ability of the body to absorb and use vitamin D, and other abnormal digestive and metabolic processes.
Vitamin D deficiency can be serious if untreated, because it can lead to a variety of conditions, diseases and disorders. These include rickets, osteomalacia (adult rickets) and osteoporosis. Complications of vitamin D deficiency include bone fractures and disability. Current research suggests that vitamin D deficiency may also be linked to the development of hypertension, depression, multiple sclerosis, arthritis, type 2 diabetes, cardiovascular disease, and an increased risk of cancer.
People at risk for vitamin D deficiency include dark-skinned people, people who live in northern climates, people who work indoors or who do not get adequate exposure to the sun, infants who are breastfeed, and older adults. Other people at risk for vitamin D deficiency include those with conditions or diseases that can cause malabsorption of vitamins and nutrients. These include cystic fibrosis, Crohn's disease, liver disease and people who have had gastric bypass surgery.
A diagnosis of vitamin D deficiency begins with taking a thorough personal and family medical history, including symptoms, and a physical examination. Diagnostic tests include a blood test that measures Vitamin D levels. Imaging tests may include X-rays and bone density testing to examine the health of the bones.
Because the symptoms vitamin D deficiency can be mild or take years to develop, it is possible to that a diagnosis can be missed or delayed. For information on misdiagnosis, refer to misdiagnosis of vitamin D deficiency.
If diagnosed early vitamin D deficiency can usually be treated successfully with a good prognosis. Treatment of vitamin D deficiency involves vitamin D supplements and increasing dietary intact of vitamin D.
Vitamin D is a fat soluble vitamin that is produced in the skin from exposure to the sun's rays, the main source of vitamin D. It is also available in supplements and in fortified milk, liver, eggs, and oily fish. For more information on treatment, refer to treatment of vitamin D deficiency....more »
It is possible for a diagnosis of vitamin D deficiency to be delayed or missed because symptoms can be mild and overlooked until complications occur. These include bones fractures or bone deformities.
The following medical conditions are some of the possible
causes of Vitamin D deficiency.
There are likely to be other possible causes, so ask your doctor
about your symptoms.
Listed below are some combinations of symptoms associated with Vitamin D deficiency, as listed in our database. Visit the Symptom Checker, to add and remove symptoms and research your condition.
The first step in the treatment of vitamin D deficiency is prevention. Vitamin D deficiency can be prevented in many people by getting adequate sun exposure. It is also important to eat a diet that includes a sufficient amount of vitamin D. Foods high in vitamin D include fortified milk and dairy products, fortified orange juice, liver, eggs, and oily fish.
Some people ...Vitamin D deficiency Treatments
Some of the possible treatments listed in sources for treatment of Vitamin D deficiency may include:
Review further information on Vitamin D deficiency Treatments.
The following drugs, medications, substances or toxins are some of the possible
causes of Vitamin D deficiency as a symptom.
Always advise your doctor of any medications or treatments you are using,
including prescription, over-the-counter, supplements, herbal or alternative treatments.
Some of the comorbid or associated medical symptoms for Vitamin D deficiency may include these symptoms:
Research the causes of related medical symptoms such as:
Read more about causes and Vitamin D deficiency deaths.
Vitamin B12 deficiency under-diagnosed: The condition of Vitamin B12 deficiency is a possible misdiagnosis of various conditions, such as multiple sclerosis (see symptoms of multiple sclerosis). See symptoms of Vitamin...read more »
Other medical conditions listed in the Disease Database as possible
causes of Vitamin D deficiency as a symptom include:
Condition due to a deficiency of vitamin D.
- (Source - Diseases Database)
Condition due to a deficiency of vitamin D.
- (Source - CRISP)
The list below shows some of the causes of Vitamin D deficiency mentioned in various sources:
This information refers to the general prevalence and incidence of these diseases, not to how likely they are to be the actual cause of Vitamin D deficiency. Of the 28 causes of Vitamin D deficiency that we have listed, we have the following prevalence/incidence information:
The following list of conditions have 'Vitamin D deficiency' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.
Select from the following alphabetical view of conditions which include a symptom of Vitamin D deficiency or choose View All.
The following list of medical conditions have Vitamin D deficiency or similar listed as a medical complication in our database. The distinction between a symptom and complication is not always clear, and conditions mentioning this symptom as a complication may also be relevant. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.
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This information shows analysis of the list of causes of Vitamin D deficiency based
on whether certain risk factors apply to the patient:
Doctor-patient articles related to symptoms and diagnosis:
These general medical articles may be of interest:
Our news pages contain the following medical news summaries about Vitamin D deficiency and many other medical conditions:
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