Vitamin D

Researchers are finding that vitamin D is a significant factor in CLL survival. Here are links to several references and reports on this important topic.

Vitamin D CouncilThe Vitamin D Council  was founded on the conviction that humans all over the world are needlessly suffering from vitamin D deficiency. 

CLL Topics Updates search for ‘vitamin D’

Bioactive vitamin D is a steroid hormone long known for its important role in regulating calcium and phosphorus, and in bone mineralization.


Second Opinion | Vitamin D | APT (video 26:45)

SECOND_OPINION___Vitamin_D___APT___Full_Episode_-_YouTubeWhen exposed to direct sunlight, the human body will naturally produce Vitamin D. However, changes in lifestyle and behavior have caused many people to become Vitamin D deficient. Learn what Vitamin D deficiency means to overall health. (Jan 2011)

How much vitamin D is needed for health?


Source: Taking Oral Vitamin D? Avoid Making This Serious Mistake

Recommended Minimum Vitamin D
Intake (μg/day and IU/day)
Birth to 50 years
5 μg (=200 IU)
51–70 years
10 μg (=400 IU)
71+ years
15 μg (=600 IU)
5 μg (=200 IU)
5 μg (=200 IU)

Source: Medicare Policies and Guidelines

Low Vitamin D Increases Pneumonia Risk in Older Adults

Conclusion.Low vitamin D levels are associated with an increased risk of pneumonia, according to new research published in the Journal of Epidemiology and Community Health.

Low Vitamin D Levels and Risk of CLL (July 2013)

Conclusion. Our findings do not support a protective role of high 25(OH)D concentration in lymphoid cancers overall. However, they suggest that higher concentrations of 25(OH)D are associated with a reduced risk of CLL.

Vitamin D and Cancer Prevention – National Cancer Institute

Summary. Although some evidence suggests that vitamin D may provide some protection against colorectal and possibly other cancers, the evidence of potential benefit is limited and inconsistent. Moreover, some studies have suggested the possibility that higher vitamin D levels are associated with increased risk for some cancers, including pancreatic cancer.

 Medicare Policies and Guidelines: Vitamin D Testing

Vitamin D assay testing is not covered for routine screening, therefore, preventive care is not recognized as a covered indication for Vitamin D serum testing. Tests that are performed in the absence of signs, symptoms, complaints, personal history of disease, or injury are not covered by Medicare except when there is a statutory provision that explicitly covers tests for screening as described in the manual.

Testing Options

Having a blood tests to measure the amount of vitamin D in your blood is the only way to know if you’re getting enough vitamin D or not. The blood test you need is called a 25(OH)D blood test.

You can get a blood test at your doctors or you can do an in-home test or get a test at a laboratory. All of these methods of testing should give you accurate results.

In-home tests are easy to use and involve pricking your finger to take a small blood sample and sending this away to a laboratory for testing.


Another Study Suggests We Increase Vitamin D Intake
Another study suggests adults need at least 4,000 IU a day, far more vitamin D than initially thought, to dramatically cut the risk of several major diseases.


Low Vitamin D Levels Linked to CLL Progression and Death
Researchers at Mayo Clinic have found a significant difference in cancer progression and death in chronic lymphocytic leukemia (CLL) patients who had sufficient vitamin D levels in their blood compared to those who didn’t.

More on the Mayo Study

Vitamin D and Cancer: A Review of Molecular Mechanisms presents a thorough clinical review, including several summary Powerpoint slides in the sidebar.


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